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The Daily Galaxy - Great Discoveries Channel -Your Daily Dose of Awe: Science, Space, Tech

The Daily Galaxy -Great Discoveries Channel, is an eclectic text and video presentation of news and original insights on science, space exploration, and the environment and their reflections in popular culture (film, books, events). Eclectic text and video blog of news and insights on science, space, technology and popular culture.



"Scary Data" --NASA's Sentinel 6A Mission Monitors Rising Sea Levels Reshaping the Surface of Our Planet (WATCH Video)  

  "As human-caused global warming drives sea levels higher and higher, we are literally reshaping the surface of our planet," said Josh Willis, NASA project scientist at NASA's Jet Propulsion Laboratory in Pasadena, California. "These missions tell us how much and how fast."   NASA has announced it has partnered with SpaceX for the Sentinel-6A mission scheduled for November 2020, which will continue NASA's study of sea level rise continue through 2027. The mission will send

2017-10-19 21:55:14
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New NASA Research Simulates Surfaces of Potentially Life-Bearing Alien Worlds in 3D  

    Previous NASA models simulated atmospheric conditions along one dimension, the vertical. Like some other recent habitability studies of alien planets, the new research used a model that calculates conditions in all three dimensions, allowing the team to simulate the circulation of the atmosphere and the special features of that circulation, which one-dimensional models cannot do. "Using a model that more realistically simulates atmospheric conditions, we discovered a new pro

2017-10-19 21:12:32
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"Exploration Bases for Future Astronauts" --Japan's Selene Probe Discovers Enormous Caves on the Moon   

    Japan's space agency announced that its Selenological and Engineering Explorer (Selene) probe, has discovered an enormous cave beneath the lunar surface that will boost plans by several countries to send astronauts to the moon almost half a century after the Apollo 11 mission. Using a radar sounder system that can examine underground structures, the orbiter initially found a chasm 50 50km (31 miles) long and 100 metres wide, prompting speculation that there could be a large...

2017-10-19 20:44:39
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"Still a Puzzle" --Organics-Rich Region on Ceres Found to Be Native to the Dwarf Planet (VIDEO)  

    Since NASA's Dawn mission fits went into orbit around Ceres,  evidence has been found for organic material on the  dwarf planet, the largest body in the main asteroid belt between Mars and Jupiter. Scientists using the spacecraft's visible and infrared mapping spectrometer (VIR) detected the material in and around a northern-hemisphere crater called Ernutet. Organic molecules are interesting to scientists because they are necessary, though not sufficient, componen

2017-10-19 09:45:35
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The Alien Observatory --Alien Chemistry on Distant Worlds: "The Search for Non-Carbon-Based Life"  

    "My feeling is that if a human being can coax life to build bonds between silicon and carbon, nature can do it too," said Frances Arnold a chemical engineer at the California Institute of Technology, about  implications that new findings might have for alien chemistry on distant worlds. Science fiction has long imagined alien worlds inhabited by silicon-based life, such as the rock-eating Horta from the original Star Trek series. Now, scientists have for the first ...

2017-10-19 07:43:23
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"Mars' Electric Moon" --Solar Eruptions Could Electrify Red Planet's Phobos (VIDEO)  

    Powerful solar eruptions could electrically charge areas of the Martian moon Phobos to hundreds of volts, presenting a complex electrical environment that could possibly affect sensitive electronics carried by future robotic explorers, according to a new NASA study. The study also considered electrical charges that could develop as astronauts transit the surface on potential human missions to Phobos. Phobos has been considered as a possible initial base for human exploration

2017-10-18 20:56:49
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"Invisible Toxic Cloud Found at South Pole of Saturn's Titan" --NASA Cassini Mission Discovery  

    Researchers with NASA's Cassini mission found evidence of a toxic hybrid ice in a wispy cloud high above the south pole of Saturn's largest moon, Titan. "This cloud represents a new chemical formula of ice in Titan's atmosphere," said Carrie Anderson of NASA's Goddard Space Flight Center in Greenbelt, Maryland, a CIRS co-investigator. "What's interesting is that this noxious ice is made of two molecules that condensed together out of a rich mixture of gases at the south pole.

2017-10-18 20:23:56
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NASA's Robotic Psyche Mission To Communicate Using Lasers --"Think of It As a Telescope at the Core of an Extinct Planet"  

      A spacecraft destined to explore a unique asteroid will also test new communication hardware that uses lasers instead of radio waves. "I am thrilled that Psyche is getting to fly the Deep Space Optical Communications package," Elkins-Tanton says. "First of all, the technology is mind-blowing and it brings out all my inner geek. Who doesn't want to communicate using lasers, and multiply the amount of data we can send back and forth?" "Doing so would allow the support

2017-10-18 19:49:31
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"Our Universe Should Actually Not Exist" --CERN Scientists Attempt to Find Out Why It Does  

    "All of our observations find a complete symmetry between matter and antimatter, which is why the universe should not actually exist," explained Christian Smorra, with the BASE collaboration at the CERN research center. "An asymmetry must exist here somewhere but we simply do not understand where the difference is. What is the source of the symmetry break?" The search goes on. No difference in protons and antiprotons have yet been found which would help to potentially explai

2017-10-18 10:17:29
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"Lost Mountains of Karoo" --260 Million Year-Old Range Old Reveals Secrets of Earth's Biggest Mass Extinction Event  

    Millions of years ago, a mountain range that would have dwarfed the Andes mountains (above) in South America, stretched over what is currently the southern-most tip of Africa. Remnants of these mountains - called the Gondwanides, after the massive supercontinent, Gondwana over which it stretched - once spanned the southern continents of South America, Antarctica, South Africa and Australia, and parts of it now form the mountains near Cape Town in South Africa. It is in the s

2017-10-18 08:43:13
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The Alien Observatory --Searching for ET Signals in the Milky Way : "May Be Too Advanced For Us to Detect"  

  "Every single one of those stars could have a New York City, a Paris, a London, and we would have no idea," said Nate Tellis of the University of California, Berkeley about the 5,600 stars analyzed in a study released by the Keck Observatory in Hawaii -- one of the world's most powerful telescopes --this past spring, 2017. Tellis, who searches for laser light, powerful pulses of photons that could be as short as a nanosecond, wondered if somewhere buried in that data, could there ...

2017-10-18 08:13:12
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"New Era of Astronomy" --Ushered In By 1st Observation of a 130-Million-Year Old Neutron Star Collision (WATCH Video)  

    "This is a huge discovery," said Ryan Foley at UC Santa Cruz. "We're finally connecting these two different ways of looking at the universe, observing the same thing in light and gravitational waves, and for that alone this is a landmark event. It's like being able to see and hear something at the same time. Two months ago, the Advanced Laser Interferometer Gravitational-Wave Observatory (LIGO) notified astronomers around the world of the possible detection of gravitational w

2017-10-17 08:51:17
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"Unlocking Saturn's Secrets" --NASA's Cassini-Mission Scientists Recap Their Amazing Discoveries (WATCH Today's 'Galaxy' Stream)  

    NASA's Cassini spacecraft ended its journey on Sept. 15 with an intentional plunge into the atmosphere of Saturn, but analysis continues on the mountain of data the spacecraft sent during its long life. Some of the Cassini team's freshest insights were presented during a news conference at the American Astronomical Society Division for Planetary Science meeting in Provo, Utah. During Cassini's final months, the spacecraft's cameras captured views from within the gap between

2017-10-17 08:08:03
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The Alien Observatory --The Search for Human-like Intelligence: "Extremely Rare or Common in the Milky Way?" (WATCH Video)  

    "We should not expect to see any other forms of life that are genetically, functionally and intellectually similar to us." says Charles Lineweaver, a noted astrobiologist at the Australian National University. "I strongly suspect that our closest relatives in the universe are here on Earth, and they're not likely to be elsewhere. Only one species of the billions of species that have existed on Earth has shown an aptitude for radios, and even we failed to build one during the

2017-10-17 07:23:56
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"It's a Frighteningly Disordered Place Out There" --Physicists Comment on the LIGO/VIRGO Observation of Neutron Star Cataclysm  

    "This is only a beginning. There are many innovations to come and I don't know where we're going to be in 10 years, 20 years, 30 years," said Peter Michelson, a professor of physics at Stanford University. "The window is open and there are going to be mind-blowing surprises. That, to me, is the most exciting." On August 17, 2017, the two detectors of Advanced LIGO, along with VIRGO, zeroed in on what appeared to be gravitational waves emanating from a pair of neu...

2017-10-16 11:20:54
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A Kilonova Detected --"A Cosmic Phenomenon Long Theorized But Never Conclusively Observed — Until Now"  

    In the world of astrophysics, Aug. 17, 2017, was a red-letter day. "This is a game-changer for astrophysics," said UC Santa Barbara faculty member Andy Howell, who leads the supernova group at the Las Cumbres Observatory (LCO). "A hundred years after Einstein theorized gravitational waves, we've seen them and traced them back to their source to find an explosion with new physics of the kind we've only dreamed about." First, NASA's orbiting Fermi satellite ident...

2017-10-16 10:24:04
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"Fiery Aftermath!" LIGO & VIRGO Gravitational-Wave Observatories Join ESO in Observing Neutron Star Collision (WATCH Video)  

    "It is tremendously exciting to experience a rare event that transforms our understanding of the workings of the universe," says France A. Córdova, director of the National Science Foundation (NSF), which funds LIGO. "This discovery realizes a long-standing goal many of us have had, that is, to simultaneously observe rare cosmic events using both traditional as well as gravitational-wave observatories. For the first time, scientists have directly detected gravitationa...

2017-10-16 08:54:24
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"An Epic First!" --ESO's Fleet of Telescopes in Chile Detect Visible Explosion of Colliding Neutron Stars (WATCH Video)  

    ESO's fleet of telescopes in Chile have detected the first visible counterpart to a gravitational wave source. These historic observations suggest that this unique object is the result of the merger of two neutron stars. The cataclysmic aftermaths of this kind of merger — long-predicted events called kilonovae — disperse heavy elements such as gold and platinum throughout the Universe. This discovery, published in several papers in the journal Nature and elsewhere, also...

2017-10-16 08:16:27
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Last Week's Top 5 Space & Science Headlines --"The Dark-Matter Illusion to Milky Way's Dark Side to Alien AI Is Out There"  

    Emergent Gravity --"Dark Matter is a Mythical Beast, a Figment of Our Ignorance" (WATCH Today's 'Galaxy' Stream) "Taking the Search for Extraterrestrial Life to a New Level" (WATCH Video) "The Far Half of the Milky Way is Terra Incognita" --Astronomers Peer Into Our Galaxy's Dark Side for 1st Time "Mind-Boggling!" --China is Building a Quantum Computing Center that Dwarfs Any in Existence Today The Alien Observatory --"Alien Minds: Artificial Intelligence Is A

2017-10-16 07:58:12
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Quantum Physicists Detect Entanglement of 16 Million Atoms --"A First!"  

      "We haven't altered the laws of physics," says Mikael Afzelius, a member of the applied physics group at the University of Geneva. "What has changed is how we handle the flow of data." Quantum theory predicts that a vast number of atoms can be entangled and intertwined by a very strong quantum relationship, even in a macroscopic structure. Until now, however, experimental evidence has been mostly lacking, although recent advances have shown the entanglement of 2,900

2017-10-16 07:13:06
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The Alien Observatory --"Alien Minds: Artificial Intelligence Is Already Out There, and It's Billions of Years Old" (WATCH Video)  

    Susan Schneider of the University of Connectict and the Institute for Advanced Studies at Princeton is one of the few thinkers—outside the realm of science fiction— that have considered the notion that artificial intelligence is already out there, and has been for eons. "I do not believe that most advanced alien civilizations will be biological," Schneider says. "The most sophisticated civilizations will be postbiological, forms of artificial intelligence or alien s...

2017-10-14 16:07:16
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"Mind-Boggling!" --China is Building a Quantum Computing Center that Dwarfs Any in Existence Today  

    Quantum computers have the potential to solve problems that would take a classical computer longer than the age of the universe. According to Oxford University physicist, David Deutsch, quantum computers can efficiently render every physically possible quantum environment, even when vast numbers of universes are interacting. Quantum computers can also efficiently solve certain mathematical problems, such as factorization, which are classically intractable, and can implement t

2017-10-14 08:30:22
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Enigma of Cosmic Rays Born Beyond the Milky Way --"Point to the Origin of the Universe" (WATCH Today's 'Galaxy' Stream)  

    Cosmic rays of very high energy have their origin outside of our own galaxy, the Milky Way. This is suggested by a study of the angles of incidence of more than 30,000 particles at the Pierre Auger Observatory  on the Argentinian Pampas covering an area of about 3000 square kilometers. This finding of the largest experiment measuring cosmic rays worldwide, which hit an area the size of a football field once every 10 000 years. is another important step on the way toward

2017-10-14 07:33:22
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"Cosmic Spindles" --Unusual Galaxy More Common Than Thought   

    Galaxies are majestic, rotating wheels of stars? Not in the case of the spindle-like galaxies studied by Athanasia Tsatsi (Max Planck Institute for Astronomy) and her colleagues. Using the CALIFA survey, the astronomers found that these slender galaxies, which rotate along their longest axis, are much more common than previously thought. The new data allowed the astronomers to create a model for how these unusual galaxies probably formed, namely out of a special kind of merge

2017-10-14 03:00:00
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This Week's "Planet Earth" Report --China's Facial Recognition Database to Neanderthal's Link to Modern Disease and When Robots Rule Earth  

     This week's link to headlines around the world on the threats, opportunities, and dangers facing our fragile planet --along with an occasional dash of humor, popular culture, and intriguing conspiracy. Asteroid 2012 TC4 Flew 'Damn Close' to Earth - But How Prepared are We for a Strike?   An asteroid the size of a house was being watched carefully this morning by astrophysicists as it hurtled "damn close" to Earth. The large space rock, named 2012...

2017-10-13 11:29:29
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"The Vortex Algorithm" --Reveals How Black Holes & Galaxies Emerge from Cosmic Maelstroms (VIDEO)  

    Yale researchers Darryl Seligman and Greg Laughlin have created a new model for understanding how black holes, planets, and galaxies emerge from the vortex-rich environments of space. They drew inspiration from a mechanical engineering algorithm that shows how air flows past a helicopter's rotor blades. "Space is full of gas, dust, fluids, and turbulence. We wanted to do a better job of accounting for the swirling of all this material," said Seligman, a graduate student and f

2017-10-13 09:09:02
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"The Far Half of the Milky Way is Terra Incognita" --Astronomers Peer Into Our Galaxy's Dark Side for 1st Time  

    "How important is it, really, for us to be able to see clear across to the other side of our own galaxy?" asks Tom Bania, a radio astronomer at Boston University. "It is the most important thing in all of astrophysics. It took humankind thousands of years to map the Earth accurately; a map of the galaxy will constrain about a dozen or so models of the structure and evolution of the Milky Way. To me, perhaps the 'Holy Grail' of astronomy is to provide a clear perspec...

2017-10-13 08:38:22
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"Chaotic Dynamics" --China Scientists Make New Discoveries for the Three-Body Problem: 'The 3rd Great Revolution in Physics'  

  China's Cixin Liu's The Three-Body Problem (image above) is a stunning science-fiction novel that asks one of the oldest questions in SF: What would it mean for the human race to come in contact with an extraterrestrial intelligence? One of the main characters is a nanotech engineer, who's been swept up in a virtual-reality, online video game called "Three Body" that's so deeply metaphysical, it resembles a cult. When the story reaches its climax, it's unveiled a conspiracy that

2017-10-12 08:03:00
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Antarctica Mystery --"Massive Hole Opens in Sea Ice the Size of Lake Superior"  

  A mysterious, massive hole, as large as Lake Superior or the State of Maine, has recently been spotted in the winter sea ice cover around Antarctica. This opening, known as a polynya, is the largest observed in the Weddell Sea since the 1970s. At its largest extent, this winter's polynya had an area of open water close to 80,000 km. This marks the second year in a row in which the polynya has formed, although it was not as large last year. Without the insulating effect of sea ice cov

2017-10-12 07:15:28
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Six New Pulsars in Milky Way Found by China's New FAST Telescope (WATCH Video)  

  Chinese scientists have discovered six new pulsar stars in the Milky Way, by using the Five-hundred-meter Aperture Spherical Telescope (FAST), the world's largest radio telescope. One of the pulsars is estimated to be 16,000 light years away, rotating at a speed of 1.83 seconds, while another is thought to be about 4,100 light years away, spinning at 0.59 of a second. Pulsars are so strange that when the first one was discovered, it was mistaken for a signal from aliens. They ar

2017-10-11 20:46:33
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LIGO/NASA --A Major Spacetime Discovery Will Be Revealed on Monday, October 16 (WATCH Video)  

  "The gathering will begin with an overview of new findings from LIGO, Virgo and partners that span the globe," the National Science Foundation announcement reads, "followed by details from telescopes that work with the LIGO and Virgo collaborations to study extreme events in the cosmos."   It Looks like Monday, October 16 will be a red letter day for astronomy with another big gravitational wave announcement coming following on the heels of the Nobel Prize Award for physics

2017-10-11 20:12:55
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ESO Mystery To Be Unveiled --"European Southern Observatory Has Made a Revolutionary Discovery Never Seen Before in the Universe"   

    According to an announcement from the ESO, scientists working at the observatory complex in Chile have witnessed an astronomical phenomenon that has never been seen before. The details of this discovery will be released next week  16 October 2017 at 16:00 CEST, at a press conference at  ESO Headquarters in Garching, Germany,. The event will be introduced from ESO's Paranal Observatory in Chile by the Director General, Xavier Barcons, and will feature talks by r...

2017-10-11 12:05:48
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"What New Species Will Evolve After Earth's 6th Mass Extinction?" --Ancient Supercontinent of Pangaea Yields Clues  

    Mass extinctions were followed by periods of low diversity in which certain new species dominated wide regions of the supercontinent Pangaea, reports a new study. The findings, published in Nature Communications, indicate that mass extinctions may have predictable consequences and provide insights into how biological communities may be expected to change in the future as a result of current high extinction rates. Mass extinctions are thought to produce 'disaster faunas', c

2017-10-11 10:22:01
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The Alien Observatory --"Taking the Search for Extraterrestrial Life to a New Level" (WATCH Video)  

    Space scientists have unveiled a bold proposal for a giant new space-based telescope that would be far more powerful than today's observatories. Called the High Definition Space Telescope (HDST), the instrument is essentially a supersized Hubble Space Telescope, with 100 times its ability to detect faint starlight. The multibillion dollar HDST would be a game-changer, and if it advances beyond the concept phase, it would launch in the 2030s. With a mirror 25 times the size o

2017-10-11 09:31:21
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"NASA's Forbidden Special Regions" --Searching for Life on Mars Before It's Too Late  

    Current robotic missions to Mars that have not been appropriately cleaned and sterilized must steer clear of designated Special Regions to avoid introducing Earth-borne biological and organic contaminants. However, some experts claim that this strategy is hindering the discovery of martian life forms and ask if planetary protection policies governing Mars explorations should be relaxed in advance of human missions. Arguments to ease policies and expand the search for life

2017-10-11 07:57:42
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Millennia-Long Pacific Northwest Volcanic Eruption Discovered --"4,000 Times the 1815 Mount Tambora Event"  

    Scientists have determined that the Pacific Northwest was home to one of the Earth's largest known volcanic eruptions, a millennia-long spewing of sulfuric gas that blocked out the sun and cooled the planet. The researchers estimate that, over tens of thousands of years, the floods put out between 242 and 305 billion tons of sulfur dioxide. That's more than 4,000 times the output of the 1815 Mount Tambora eruption in present-day Indonesia (caldera above). That eruption blanke

2017-10-11 07:04:32
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Emergent Gravity --"Dark Matter is a Mythical Beast, a Figment of Our Ignorance" (WATCH Today's 'Galaxy' Stream)  

    Perhaps General Relativity can be modified to give a new theory  in which the motions of galaxies, and the structure of the universe, are correctly predicted, without the need for dark matter. Maybe even the accelerating expansion of the universe, another current conundrum of physics, can be explained in such a theory.' Perhaps dark matter is a mythical beast, a figment of our ignorance which will evaporate as we explore nature more thoroughly. Gravity is in dire need

2017-10-10 08:22:59
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The Alien Telescope --Planets Discovered Orbiting Neutron Stars: "Life Might Exist There as Hyper-Dense Microscopic Organisms Controlled by Nuclear Forces"  

    Life could possibly evolve on a neutron star itself as "hyper-dense microscopic organisms controlled by nuclear forces with a metabolism faster than ordinary chemical-based life," suggests Lord Martin Rees, Britain's acclaimed Astronomer Royal and Cambridge University physicist. "Even if simple life is common, it is a separate question whether it's likely to evolve into anything we might recognize as intelligent or complex - and where this might happen." Rees adds. ...

2017-10-10 08:09:16
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The Alien Observatory --Planets Discovered Orbiting Neutron Stars: "Life Might Exist There as Hyper-Dense Microscopic Organisms Controlled by Nuclear Forces"  

    Life could possibly evolve on a neutron star itself as "hyper-dense microscopic organisms controlled by nuclear forces with a metabolism faster than ordinary chemical-based life," suggests Lord Martin Rees, Britain's acclaimed Astronomer Royal and Cambridge University physicist. "Even if simple life is common, it is a separate question whether it's likely to evolve into anything we might recognize as intelligent or complex - and where this might happen." Rees adds. ...

2017-10-10 08:09:16
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"Everybody Knew It Had To Be There" --Missing Half of Normal Matter in the Universe Has Been Detected  

    "Everybody sort of knows that it has to be there, but this is the first time that somebody - two different groups, no less - has come up with a definitive detection," says Ralph Kraft at the Harvard-Smithsonian Center for Astrophysics in Massachusetts. Observations of galaxies and galaxy clusters in the local universe can account for only 10% of the baryon content -made of particles called baryons rather than dark matter- inferred from measurements of the cosmic micr...

2017-10-09 10:23:29
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The Alien Telescope --"Europa's 'Chaos' Might Reveal 1st Evidence of Life"  

    Arthur C. Clarke warned us to attempt no landings on Europa in 2010: Odyssey Two, the 1982 the science fiction novel , when the Earth mission returns to the Jupiter to explore beneath the ice of Europa, nine years after the failure of the Discovery One mission. But if you did land on Europa on some future NASA or ESA mission, wouldn't you like to know where to go? Caltech astronomer Mike Brown, professor of planetary astronomy lays the journey out in his Mike Brown's Planet...

2017-10-09 07:14:22
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The Alien Observatory --"Europa's 'Chaos' Might Reveal 1st Evidence of Life"  

    Arthur C. Clarke warned us to attempt no landings on Europa in 2010: Odyssey Two, the 1982 the science fiction novel , when the Earth mission returns to the Jupiter to explore beneath the ice of Europa, nine years after the failure of the Discovery One mission. But if you did land on Europa on some future NASA or ESA mission, wouldn't you like to know where to go? Caltech astronomer Mike Brown, professor of planetary astronomy lays the journey out in his Mike Brown's Planet...

2017-10-09 07:14:22
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Last Week's Top 5 Space & Science Headlines --"China's Search for Alien Life to Origin of Big Bang and Secrets of Jupiter's Ganymede"  

    "Gravity is an Illusion" --The Theory That Predicted Gravitational Waves May Be Wrong (WATCH Today's 'Galaxy' Stream) The Alien Telescope --"China's Astronomers Aim to Be First to Discover Existence of an Advanced Technological Civilization" (WATCH Video) "What Sparked the Big Bang?" --The Black Hole at the Beginning of the Universe (WATCH Today's 'Galaxy' Classic) "Life Below?"--Hubble Confirms Largest Ocean World in Our Solar System: Jupiter's Ganymede (WATCH Vid

2017-10-09 06:31:01
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The SF Projector --The 'Three-Body Problem' China's Hard Science-Fiction Phenomenon: "Every Advanced Alien Civilization is a Hidden Hunter" (WATCH Video)  

    This full-length video of the Three-Body Problem --the first science-fiction novel of a trilogy published in 2014- is the first chance for English-speaking readers to view the Hugo Award-winning phenomenon from Liu Cixin, who depicts the universe as a jungle with every advanced alien civilization as a "hidden hunter." The novel asks one of the oldest questions in SF: What would it mean for the human race to come in contact with an extraterrestrial intelligence? "This is the

2017-10-08 07:57:17
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The Alien Telescope --"China's Astronomers Aim to Be First to Discover Existence of an Advanced Technological Civilization" (WATCH Video)  

    "We don't know when earthlings will discover ET. It could be 1,000 years from now, or in our lifetimes. It could be next year, when FAST gets going on the sky surveys," said Dan Werthimer, chief scientist for the SETI Research Center at University of California, Berkeley. However, with no clues of extraterrestrial life over the past five decades, questions are constantly asked as whether the search methods are appropriate. "Some strange signals have been found, but it's hard

2017-10-07 07:49:46
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NASA News: Mars Ancient Oceans Yield Clues to Possible Cradle of Life --"Undersea Hydrothermal Conditions May Have Existed 3.7 billion Years Ago" (WATCH Video)  

    "Even if we never find evidence that there's been life on Mars, this site can tell us about the type of environment where life may have begun on Earth," said Paul Niles of NASA's Johnson Space Center, Houston. "Volcanic activity combined with standing water provided conditions that were likely similar to conditions that existed on Earth at about the same time -- when early life was evolving here." › A long-gone sea on southern Mars once held nearly 10 times as much water a...

2017-10-06 16:53:03
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This Week's "Planet Earth" Report --Undestroyable 'Hypersonic' Missiles to Decoding Extraterrestrials and Post-Human Interstellar Travel  

      This week's link to headlines around the world on the threats, opportunities, and dangers facing our fragile planet --along with an occasional dash of humor and intriguing conspiracy.      China's New Electric Car Rules Are Amazingly Aggressive     This is how you really get an industry to change its ways. Bloomberg reports that China's government has announced that any automaker producing or importing more than 30,000 ca...

2017-10-06 10:13:18
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'Overlooked?' --Saturn's Moon Dione: "A Fossil of the Wondrous Activity Cassini Discovered At the Geysers of Enceladus"  

    "A picture is emerging that suggests Dione could be a fossil of the wondrous activity Cassini discovered spraying from Saturn's geyser moon Enceladus or perhaps a weaker copycat Enceladus," said Bonnie Buratti of NASA's Jet Propulsion Laboratory in Pasadena, Calif., who leads the Cassini science team that studies icy satellites. "There may turn out to be many more active worlds with water out there than we previously thought." "There's really good evidence" for Dione...

2017-10-06 07:29:50
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'Overlooked?' --Saturn's Moon Dione: "A Fossil of the Wondrous Activity Cassini Discovered Spraying from the Geysers of Enceladus"  

    "A picture is emerging that suggests Dione could be a fossil of the wondrous activity Cassini discovered spraying from Saturn's geyser moon Enceladus or perhaps a weaker copycat Enceladus," said Bonnie Buratti of NASA's Jet Propulsion Laboratory in Pasadena, Calif., who leads the Cassini science team that studies icy satellites. "There may turn out to be many more active worlds with water out there than we previously thought." "There's really good evidence" for Dione...

2017-10-06 07:29:50
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'Overlooked?' --Saturn's Moon Dione: "A Fossil of the Wondrous Activity Cassini Discovered With the Geysers of Enceladus"  

    "A picture is emerging that suggests Dione could be a fossil of the wondrous activity Cassini discovered spraying from Saturn's geyser moon Enceladus or perhaps a weaker copycat Enceladus," said Bonnie Buratti of NASA's Jet Propulsion Laboratory in Pasadena, Calif., who leads the Cassini science team that studies icy satellites. "There may turn out to be many more active worlds with water out there than we previously thought." "There's really good evidence" for Dione...

2017-10-06 07:29:50
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"Indicator of Extraterrestrial Life?" --ALMA Observatory Discovery Update  

      Exoplanet research has gone beyond the point of finding planets - more than 3,000 exoplanets are now known - to looking for chemical markers that might indicate the potential presence of life. A vital step is determining which molecules could indicate life, but establishing reliable markers remains a tricky process. Using data captured by the Atacama Large Millimeter/submillimeter Array (ALMA) ALMA in Chile and the ROSINA instrument on ESA's Rosetta mission, an inte

2017-10-05 09:39:34
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"Gravity is an Illusion" --The Theory That Predicted Gravitational Waves May Be Wrong (WATCH Today's 'Galaxy' Stream)  

      "We have evidence that this new view of gravity actually agrees with the observations, " says Erik Verlinde, a Dutch theoretical physicist and string theorist. "At large scales, it seems, gravity just doesn't behave the way Einstein's theory predicts." The detection of gravitational waves (image above) scooped the 2017 Nobel physics prize. But Verlinde proposes a rather different theory --the theory of emergent gravity."Many theoretical physicists like me are working

2017-10-05 09:03:19
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NASA News Update --"Tabby's Star Case Not Closed!" The Quest Continues: 'A Planet Swallowed by a Star?'  

    Some 1,500 light years from Earth, a mystery of stellar proportions is playing out. A singular star out there captured scientists' and the public's imagination in September 2015 with its strangely fluctuating brightness. Ever since then, the scientific community has been observing this enigmatic character and sifting methodically through the data in search of an answer. Certain explanations are eliminated, while other likely suspects come to the fore. Meanwhile, the world has

2017-10-05 07:36:14
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2 

NASA Space Telescopes Nix Alien Megastructure in Tabby's Star Controversy --"Might Be a Colossal Orbiting Dust Cloud or Solar Activity Cycle" (VIDEO)  

    "This pretty much rules out the alien megastructure theory, as that could not explain the wavelength-dependent dimming," said Huan Meng, an astronomer at the University of Arizona, who is lead author of the new study published in The Astrophysical Journal. "We suspect, instead, there is a cloud of dust orbiting the star with a roughly 700-day orbital period." While study authors have a good idea why Tabby's Star dims on a long-term basis, they did not address the shorter-ter

2017-10-04 19:50:46
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76 

"What Sparked the Big Bang?" --The Black Hole at the Beginning of the Universe (WATCH Today's 'Galaxy' Classic)  

    The Big Bang poses a big question: if it was indeed the cataclysm that blasted our universe into existence 13.7 billion years ago, what sparked it? Three researchers at Canada's Perimeter Institute for Theoretical Physics propose that the Big Bang could be the three-dimensional "mirage" of a collapsing star in a universe profoundly different than our own.     Image credit: ESO        

2017-10-04 10:34:05
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49 

"Life Below?"--Hubble Confirms Largest Ocean World in Our Solar System: Jupiter's Ganymede (WATCH Video)  

    "The Ganymede ocean is believed to contain more water than Europa's," says Olivier Witasse, a project scientist working on ESA's future Jupiter Icy Moon Explorer (JUICE). "Six times more water in Ganymede's ocean than in Earth's ocean, and three times more than Europa." In March of 2016, NASA's Hubble Space Telescope revealed the best evidence yet for an underground saltwater ocean on Ganymede, Jupiter's largest moon --larger than Mercury and not much smaller tha...

2017-10-04 08:06:10
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37 

"Beyond the Nobel" --LIGO's Kip Thorne 'Peers Into the Dark Side of the Universe' (WATCH Video)  

    "We now witness the dawn of a new field: gravitational wave astronomy," Nils Mårtensson, chair of the Nobel Committee for Physics, said at the announcement Tuesday. "This will teach us about the most violent processes in the universe, and it will lead to new insights into the nature of extreme gravity."       With the discovery of gravitational waves, says Kip Thorne, newly crowned recepient of the Nobel Proze for Physics and Caltech's Richard...

2017-10-03 20:15:28
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99 

"Stars Just Don't Do That" --Official Inside Story of Tabby's Star & the Alien Megastructure Controversy" (WATCH Video)  

    "But with this star, you don't have the regular, periodic dips," says astronomer Tabetha "Tabby" Boyajian, a postdoctoral Fellow at Yale University, soon to join the faculty at Louisiana State University. "There is no period in which you know dips will occur. The dips last for extraordinarily long periods of time—different durations each time. Stars just don't do that." "The problem with Tabby's Star," says Daryll LaCourse, a co-author of the discovery paper, "is that ever...

2017-10-03 14:13:09
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34 

Enigma! --"Dark Energy May Not Be the Cosmological Constant" (WATCH Video)  

    "Since its discovery at the end of last century, dark energy has been a riddle wrapped in an enigma," said Bob Nichol, Director of the Institute of Cosmology and Gravitation (ICG) at the University of Portsmouth. "We are all desperate to gain some greater insight into its characteristics and origin. Such work helps us make progress in solving this 21st Century mystery." Revealing the nature of dark energy is one of key goals of modern sciences. The physical property of dark

2017-10-03 09:22:01
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10 

"The Unresolved Paradox of Mars" --Its Ancient Lakes & Rivers   

    "It's a paradox, an unresolved paradox of Mars," says Kevin Zahnle, a NASA scientist. "On the one hand, some people say that it looked warmish and wettish, at least occasionally. On another hand, nobody can figure out how it could have been warmish and wettish." Since its epic touch down in 2012, NASA's rover Curiosity has discovered that Mars' 96-mile-wide Gale Crater harbored a series of lakes around 3.5 billion years ago, revealing environments that would have b...

2017-10-03 08:53:45
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45 

"Ripples in Spacetime!" --2017 Nobel Prize Won By American Trio for Discovery of Gravitational Waves (WATCH Video)  

      Fundamentally, the detection of gravitational waves was a huge deal, as it was a confirmation of a key prediction of Einstein's general theory of relativity. Following the epic discovery "We looked closer at the astrophysics of the actual result, a merger of two 30-solar-mass black holes," said  professor of physics & astronomy James Bullock at University of California Irvine. "That was simply astounding and had us asking, 'How common are black holes of t...

2017-10-03 07:13:57
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46 

"Ripples in Spacetime!" --2017 Nobel Prize Cliched by American Trio for Discovery of Gravitational Waves (WATCH Video)  

      Fundamentally, the detection of gravitational waves was a huge deal, as it was a confirmation of a key prediction of Einstein's general theory of relativity. Following the epic discovery "We looked closer at the astrophysics of the actual result, a merger of two 30-solar-mass black holes," said  professor of physics & astronomy James Bullock at University of California Irvine. "That was simply astounding and had us asking, 'How common are black holes of t...

2017-10-03 07:13:57
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54 

"Near Young Sun-Like Stars" --Organic Compound Freon-40 Created By Biological Processes on Earth  

    "Finding the organohalogen Freon-40 near these young, Sun-like stars was surprising," said Edith Fayolle, a researcher with the Harvard-Smithsonian Center for Astrophysics in Cambridge, Massachusetts in the USA, and lead author of the new paper. "We simply didn't predict its formation and were surprised to find it in such significant concentrations. It's clear now that these molecules form readily in stellar nurseries, providing insights into the chemical evolution of planeta

2017-10-02 11:30:00
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55 

"The Anthropocene Epoch" --Scientists Propose It Should be Part of Earth's Geological Time Scale  

    "Our findings suggest that the Anthropocene should follow on from the Holocene Epoch that has seen 11.7 thousand years of relative environmental stability, since the retreat of the last Ice Age, as we enter a more unstable and rapidly evolving phase of our planet's history," said Jan Zalasiewicz from the University of Leicester's School of Geography, Geology and the Environment. The significant scale of human impact on our planet has changed the course of Earth history,

2017-10-02 10:29:00
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20 

'Journey to a Strange Metal World' --NASA Testing Propulsion System For Deep-Space Mission to Psyche: "Only Known Object of Its Type" (WATCH Video)  

    "We've never had an opportunity to look at a metal world, so this is brand new exploration in the classic style of NASA," says David Oh, the mission's lead project systems engineer. NASA is testing a leading-edge propulsion system intended for a deep space mission to Psyche, a strange metal world located in the asteroid belt, which to be made up of nickel and iron, not rock and ice like most worlds. Researchers at Arizona State University, in partnership with NASA's ...

2017-10-02 09:41:41
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41 

 "Abode of Space-Faring Civilizations?" --Giant Elliptical Galaxy NGC 4874 Holds 30,000 Globular Star Clusters: 'Most in the Universe'  

    A giant elliptical galaxy, about ten times larger than the Milky Way, observed by the Hubble Space Telescope harbors more than 30,000 globular clusters, which according to astronomer Rosanne DiStefano at the Harvard-Smithsonian CfA "might be the first place in which intelligent life is identified in our galaxy." Globular star clusters are extraordinary in almost every way. The globulars, which are found in the halo of galaxies, are densely packed, holding a million stars in a

2017-10-02 07:56:57
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50 

"Evidence Missing for Actual Age of the Universe" --Center for Astrophysics  

    The universe is not only expanding - it is accelerating outward, driven by what is commonly referred to as "dark energy." The term is a poetic analogy to label for dark matter, the mysterious material that dominates the matter in the universe and that really is dark because it does not radiate light (it reveals itself via its gravitational influence on galaxies). Two explanations are commonly advanced to explain dark energy. The first, as Einstein once speculated, is that gr

2017-10-02 07:07:42
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29 

Last Week's Top 5 Space & Science Headlines --"The Jupiter Brain, to Life in Early Cosmos, to Cassini Team's Sequel"  

    "Jellyfish Dreams" --Caltech: Sleep is an Ancient Behavior, Untouched by Millennia of Evolution (WATCH Today's 'Galaxy' Stream) "The Jupiter Brain" --NASA Space Computer That Will Survive the Gas Giant's Hellish Radiation & Atmosphere The Alien Observatory: Life was Common in the Early Universe --"We are the Latecomers" (WATCH Today's 'Galaxy' Stream) "Mystery of Our Cosmos Deepens" --4th Detection of Gravitational Waves from a Cataclysmic Collision of Black Hole...

2017-10-02 03:00:00
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55 

The Alien Observatory --"Holographic Lasers Zap Plumes of Water from Vast Ocean of Saturn's Enceladus" (WATCH Video)  

      NASA Scientists have calculated that as much as 250 kilograms of water vapor is released every second in each of Enceladus's plumes. Since those first observations, more than a hundred geysers have been spotted. This water is thought to replenish Saturn's diaphanous E ring, which would otherwise dissipate quickly, and was the subject of a recent announcement by NASA describing Enceladus as an "ocean world" that is the closest NASA has come to finding a place with the

2017-10-01 07:53:59
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11 

The Alien Observatory --"Holographic Lasers Zap Plumes from Ocean of Saturn's Enceladus" (WATCH Video)  

      NASA Scientists have calculated that as much as 250 kilograms of water vapor is released every second in each of Enceladus's plumes. Since those first observations, more than a hundred geysers have been spotted. This water is thought to replenish Saturn's diaphanous E ring, which would otherwise dissipate quickly, and was the subject of a recent announcement by NASA describing Enceladus as an "ocean world" that is the closest NASA has come to finding a place with the

2017-10-01 07:53:59
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18 

Expedition to Zealandia --"Lost 8th Continent Submerged 80 Million Years Ago With Rise of the Pacific Ring of Fire"  

    "Zealandia, a sunken continent long lost beneath the oceans, is giving up its 60 million-year-old secrets through scientific ocean drilling," said Jamie Allan, program director in the U.S. National Science Foundation's Division of Ocean Sciences. The 8th, hidden continent of Zealandia, a landmass the size of India, sunk beneath the sea as the Pacific Ring of Fire formed. About 100 million years ago, Australia, Antarctica and Zealandia were all part of a mega-continent. The n

2017-10-01 07:06:27
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7 

Gigantic Solar Ejection Lights Up Mars in Ultraviolet Light --"Caused a Planet-Wide Aurora"  

    An unexpectedly strong blast from the Sun hit Mars this month, observed by NASA missions in orbit and on the surface. NASA announced Friday that a coronal mass ejection from the Sun on September 11 was so strong that charged particles caused a planet-wide aurora on Mars. According to team members of NASA's Mars Atmosphere and Volatile Evolution (MAVEN) mission, the solar event caused the entirety of Mars to light up in ultra-violet light. The aurora was also 25 times bright...

2017-09-30 19:14:14
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34 

This Week's "Planet Earth" Report --Aging Mount Agung's Deadly Eruptions to Species-Jumping Virus and Dark Secret of AI  

  Bali's Mount Agung Poised to Erupt An eruption at Bali's Mount Agung volcano is imminent, according to experts. Hundreds of tremors are being recorded at the site each day, and more than 75,000 people evacuated in the past few days after local authorities declared a state of emergency. Last week Indonesian authorities announced the highest possible alert warning, and besides the evacuations they've also set up an exclusion zone that stretches 12km from the crater in some places. ...

2017-09-30 14:59:29
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5 

"Annihilation" The Movie: The Mystery of 'It' --'Was It Carbon Based, Did It Communicate With You' (WATCH Video)  

    In this first trailer of Alex Garland's sci-fi thriller Annihilation, Natalie Portman plays a biologist looking for her missing husband while on an expedition with a secret agency and discovers a mysterious creature lurking in the wilderness. Annihilation is adapted from the award-winning novel by Jeff VanderMeer about a biologist who embarks on a research expedition after her husband returns from a what appeared to be a suicide mission in a bizarrely altered state. Annihila

2017-09-30 14:13:23
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53 

StarTalk Radio --NASA's Former Chief Scientist on Climate in the Solar System: Earth to Venus, Mars, Titan's Ice Volcanoes & the Anti-Greenhouse Effect  

  Dr. Ellen Stofan, former Chief Scientist at NASA, who has been involved with numerous interplanetary spacecraft missions, including the Magellan spacecraft, leads a discussion on Earth's climate: using space exploration to talk about climate change; the impact of climate change on human health; applying climate models to other planets, volcanoes) and their climatic impact; and much more. Explore Ellen's favorite celestial body in the solar system, Titan (atmosphere images above),...

2017-09-30 11:51:15
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24 

"Jellyfish Dreams" --Caltech: Sleep is an Ancient Behavior, Untouched by Millennia of Evolution (WATCH Today's 'Galaxy' Stream)  

  Jellyfish and humans may seem wildly different, but both still need to sleep. At first glance, humans seem to have very little in common with Cassiopea, a primitive jellyfish. Cassiopea is brainless, spineless, and spends essentially its entire life sitting upside down on the ocean floor, pulsating every few seconds. However, Caltech scientists have now discovered that, as different as our daily schedules may seem, humans and jellyfish actually start and end their days with the sam

2017-09-30 07:42:25
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30 

"The Jupiter Brain" --NASA Space Computer That Will Survive the Gas Giant's Hellish Radiation & Atmosphere  

    In the 1970s and 1980s, the Soviets put landers on the surface of Venus. One survived for 57 minutes (the planned design life was 32 minutes) in an environment with a temperature of 470 degrees Celsius and a pressure of 94 Earth atmospheres. Another lasted for 127 minutes in similar conditions. Yet a third held on for 63 minutes. No spacecraft has yet laid our eyes on the surface of Jupiter because of the planet's intense radiation. Yuji Zhao, head of the semiconductor mat...

2017-09-30 07:19:28
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65 

"Spooky!" China's Academy of Sciences Holds World's First Unhackable Quantum Videoconference  

    China holds world's first 'unhackable' quantum videoconference in secure communication breakthrough between laboratories in Beijing and Vienna, that could herald the start of a new era of ultrasecure communications that can never be hacked and could revolutionise how humans connect. The Chinese science academy said the encrypted communication system was being tested for potential 'real-world applications. The call was held between President Chunli Bai of Beijing's Chinese Aca

2017-09-30 06:49:07
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53 

Hidden Sites for Human Habitats on the Moon and Mars --"These Vast Lava Tubes Could Also Shield Extraterrestrial Life from Cosmic Radiation"  

    "These results have important implications for habitability and human exploration of the moon but also for the search of extraterrestrial life on Mars, says Dr Riccardo Pozzobon, of the University of Padova. "Lava tubes are environments shielded from cosmic radiation and protected from micrometeorites flux, potentially providing safe habitats for future human missions. They are also, potentially, large enough for quite significant human settlements - you could fit most...

2017-09-29 10:04:59
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35 

"Artemis" --Crime and Shadowy Conspiracy Envelop First-and-Only Lunar City in Andy Weir's Followup to The Martian (WATCH VIDEO)  

    Like The Martian, Andy Weir's new book will be hardcore sci-fi with a moon city and real technology. "I've got a lot of contacts at JPL and NASA," Weir said in a 2015 interview. "I'm friends with a lot of astronauts now, which is pretty cool. I can call them, and say, "Hey, I've got a question about a largely unknown sub-compartment on the International Space Station. Can you help?" Unlike  The Martian's astronaut, Mark Watney, played by Matt Damon in the blo...

2017-09-29 08:44:20
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29 

"Cities on Mars!" --SpaceX Founder Elon Musk Lays Out 'BFR' Interplanetary Transport Plans for the Red Planet (VIDEO)  

    SpaceX founder Elon Musk unveiled ambitious plans Friday to send cargo ships to Mars in five years and use rockets to carry people between Earth's major cities in under half-an-hour. The planned interplanetary transport system, codenamed BFR (Big Fucking Rocket), would be downsized so it could carry out a range of tasks that would then pay for future Mars missions. Musk said the BFR would refuel in space for trips to the moon, meaning a lunar base would not need to keep a su

2017-09-29 07:41:55
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29 

USA-Russia Lunar Space Station Announced --"Gateway to Mars & Beyond" (WATCH Video)  

    Despite rising domestic tensions between Russia and the Trump administration, the two nations continue to move forward on shared goals beyond the planet, from the International Space Station to Venus exploration. NASA and the Russian space agency Roscosmos have just signed an agreement at the 68th International Astronautical Congress in Adelaide, Australia, to work together on the orbital Moon base. to join forces on a new mission called the Deep Space Gateway (DSG), an Ameri

2017-09-28 11:32:36
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13 

The Alien Observatory: Life was Common in the Early Universe --"We are the Latecomers" (WATCH Today's 'Galaxy' Stream)  

      How long has there been life in the Cosmos? Perhaps some thirteen billion years. Harvard Astrophysicist Avi Loeb discusses the surprising habitability of the early Universe.        The image at the top of the page shows a small galaxy, Sextans A in the early        

2017-09-28 08:02:23
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54 

"Voracious!" --Speed of Supermassive Black Hole's Consumption of Matter Affects Appearance of Its Galaxy  

    For decades, astronomers have tried to pin down why two of the most common types of active galaxies, known as Type I and Type II galaxies, appear different when observed from Earth. Although both galaxy types host voracious supermassive black holes known as active galactic nuclei, which actively swallow matter and emit massive amounts of radiation, Type I galaxies appear brighter to astronomers' telescopes. New research from an international team of astronomers makes a

2017-09-28 07:24:05
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58 

"Mystery of Our Cosmos Deepens" --4th Detection of Gravitational Waves from a Cataclysmic Collision of Black Holes (WATCH Video)  

  Astronomers have made a new detection of gravitational waves, named GW170814, after the day it was detected,  that occurred nearly 2 billion years ago, and for the first time have been able to trace the shape of spacetime ripples sent when black holes collide. The announcement, made at a meeting of the G7 science ministers in Turin, Italy marks the fourth discovery of cataclysmic black-hole merger, and the first to have also been picked up by the Virgo detector, located near Pis

2017-09-27 15:58:31
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47 

'Where No Spacecraft Has Gone Before' Cassini-Science Team's Farewell to Saturn --“We've Got to Go Back — We Know It” (WATCH Today's 'Galaxy' Stream)  

    "We left the world informed, but still wondering, and I couldn't ask for more," said Cassini project manager Earl Maize at a press conference, just before mission end. "We've got to go back — we know it." Cassini Mission members want NASA's next journey to the Saturnian system to be a hunt for alien life in the plumes of Enceladus and the methane lakes of Titan, which would seriously up the ante on a historic, epic voyage.   NASA's Astronomy Pictu...

2017-09-27 08:21:05
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35 

"Strange Unknown Structures of the Saturn Nebula" --Revealed by ESO's Very Large Telescope (VLT)   

    The spectacular planetary nebula NGC 7009, or the Saturn Nebula, emerges from the darkness like a series of oddly-shaped bubbles, lit up in glorious pinks and blues captured by the European Southern Observatory's Very Large Telescope. The image reveals a wealth of intricate structures in the dust, including shells, a halo and a curious wave-like feature—will help astronomers understand how planetary nebulae develop their strange shapes and symmetries. Intriguingly, the tea...

2017-09-27 06:39:38
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33 

The Alien Observatory --“Extinction is the Cosmic Default for Most Life That Has Emerged in the Universe" (WATCH Video)  

    Something Enrico Fermi overlooked: scientists from the Australian National University's Research School of Earth Sciences think the reason we haven't found signs of advanced technological life might be because all the aliens went extinct. "Extinction is the cosmic default for most life that has ever emerged," the authors of the study write. In a 2016 study published in the journal Astrobiology, Aditya Chopra and his colleagues do a good job detailing something alread...

2017-09-26 08:47:50
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75 

"Awesome!" --MARS 2020 Rover Will Host Laser Power Capable of Detecting Carbon-Based Organic Signatures of Past Life  

    The robust and powerful abilities of NASA's new SuperCam will be an invaluable chemical probe for the Mars 2020 rover and may just bring to life a whole host of new findings back to us here on Earth. In addition to a faster LIBS system, the SuperCam will feature an entirely new conduction-cooled laser system to provide the non-destructive analysis ability of RAMAN spectroscopy, capable of detecting carbon-based signatures of organic materials. As the NASA Curiosity rover roa

2017-09-26 08:05:29
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19 

"Engines of Creation" --New Insights into Supermassive Black Holes  

      Black holes appear to play a fundamental role in how galaxies evolve during a phase in which they are active and consuming material from the galaxy itself. During this phase, the galaxy hosts an active galactic nucleus (AGN), and the effect that this nuclear activity produces in the galaxy is known as AGN feedback. For instance, the AGN can heat, disrupt, consume and remove the gas available to form new stars, preventing further galaxy growth. AGN feedback is now requ

2017-09-26 07:25:51
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21 

"Where None Have Gone Before" --SpaceX's Elon Musk Ups the Suspense on Plans to Make Humans a Spacefaring Species (WATCH Video)  

    "Once you have all of those four elements, you can actually go anywhere in the solar system by planet hopping or moon hopping," Elon Musk said at t June's ISS R&D conference in Washington, D.C. "So by establishing a propellant depot in the asteroid belt or on one of the moons of Jupiter you can make flights from Mars to Jupiter no problem." The SpaceX founder plans to unveil something huge at the International Astronautical Congress later this week where Musk will ...

2017-09-25 11:36:21
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22 

Tiny Dwarf Galaxy Provides a Snapshot of the Early Universe --"Oxygen Came Later"  

    "We found that a considerable fraction of the stellar mass of the galaxy was formed only a few million years ago, making this one of the best counterparts we've found of primordial galaxies," said University of Virginia astronomer Trinh Thuan. "Because of its extremely low oxygen level, this galaxy serves as an accessible proxy for star-forming galaxies that came together within one to two billion years after the Big Bang, the early period of our nearly 14 billion-year-old un

2017-09-25 11:05:52
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15 

Last Week's Top 5 Space & Science Headlines --"X-Games of Astronomy to Life Beyond Matter to 'Planet-Earth' Report"    

    "The X-Games of Astronomy" --Scientists Close to Actual Pictures of Milky Way's Supermassive Black Hole (WATCH Today's 'Galaxy' Stream) This Week's "Planet Earth" Report --How a Hydrogen Bomb Would Affect the Pacific to Supernova 30-Light Years Away to Our Non-SciFi Cities of the Future Most Mysterious Phenomena in the Universe --"FRB Signals Occur Once Every Every Second from Unknown Sources" (WATCH Today's 'Galaxy' Stream) The Alien Observatory --"Advanced Life M

2017-09-25 07:15:33
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46 

"The Alien Channel" --METI: 'Earth Has Been Signaling Advanced Civilizations for the Past 2.5 Billion Years' (WATCH Today's 'Galaxy' Stream)  

  "It's the fact that every civilization that does have the ability to travel to Earth could already pick up I Love Lucy. So we have been sending our existence into space with radio signals for 78 years. Even before that, two and a half billion years, we have been telling the Universe that there is life on here because of the oxygen in our atmosphere. "So if there's any alien out there paranoid about competition, it could have already come and wipe us out. If they're on thei...

2017-09-24 08:43:13
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47 

Betelgeuse 100,000 Years After It Morphed Into a Super Red Giant --"Not a Threat to Earth If It Goes Supernova"  

    Were a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions. X-rays and more energetic gamma-rays from the supernova could destroy the ozone layer that protects us from solar ultraviolet rays. At 340 light years distant, the red giant star Betelgeuse is not a threat to Earth. Betelgeuse, once so large it would reach out to Jupiter's orbit if placed in our own solar system, may have been born wit

2017-09-24 07:23:19
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73 

This Week's "Planet Earth" Report --How a Hydrogen Bomb Would Affect the Pacific to Supernova 30-Light Years Away to Our Non-SciFi Cities of the Future  

    Betelgeuse Supernova And Its Impact On Earth - Science Documentary   Were a supernova to go off within about 30 light-years of us, that would lead to major effects on the Earth, possibly mass extinctions. X-rays and more energetic gamma-rays from the supernova could destroy the ozone layer that protects us from solar ultraviolet rays.   What Would a Hydrogen Bomb Do to the Pacific Ocean?    The latest fiery exchange between the Unite

2017-09-23 09:05:50
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19 

The Alien Observatory --Odd White-Dwarf Star System Harbors a 13-Billion-Year-Old Planet (WATCH VIDEO)  

  "In the quest for extraterrestrial biological signatures, the first stars we study should be white dwarfs," said Avi Loeb, theorist at the Harvard-Smithsonian Center for Astrophysics (CfA) and director of the Institute for Theory and Computation. Even dying stars could host planets with life - and if such life exists, we might be able to detect it within the next decade. "A globular cluster might be the first place in which intelligent life is identified in our galaxy," observed Loeb

2017-09-23 07:55:34
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96 

"The X-Games of Astronomy" --Scientists Close to Actual Pictures of Milky Way's Supermassive Black Hole (WATCH Today's 'Galaxy' Stream)  

    A super-powered radio telescopes has turned the Earth into one giant eye --the Event Horizon Telescope (EHT), a multinational effort involving more than 100 researchers--all pointing to Sagittarius A*—the supermassive black hole at the center of our galaxy first forecast by Albert Einstein and his theory of general relativity, and since then the subject of study by countless theoretical physicists, among them the famous cosmic detective Stephen Hawking. The EHT plan focuse...

2017-09-22 08:15:53
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46 

"Ultimate Source a Mystery" --Earth's Largest Cosmic Ray Observatory Provides Evidence of Extragalactic Origins  

  Cosmic rays are atomic nuclei that travel through space at speeds close to that of light. Low-energy cosmic rays come from the Sun or from our own Galaxy, but the origin of the highest-energy particles has been the subject of debate ever since they were first discovered fifty years ago: do they come from our Galaxy or from distant extragalactic objects? The question has now been settled by studying 30 000 cosmic-ray particles with energies a million times greater than those of t

2017-09-22 03:30:00
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57 

Most Mysterious Phenomena in the Universe --"FRB Signals Occur Once Every Every Second from Unknown Sources" (WATCH Today's 'Galaxy' Stream)  

    "In the time it takes you to drink a cup of coffee, hundreds of FRBs may have gone off somewhere in the Universe," said Avi Loeb, at the Harvard-Smithsonian Center for Astrophysics, who recently speculated that these signals may be signals from extraterrestrial civilizations. "If we can study even a fraction of those well enough, we should be able to unravel their origin." "If we are right about such a high rate of FRBs happening at any given time, you can imagine the sky is

2017-09-21 10:49:47
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