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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.



Space Hurricane's --"Gigantic Solar Eruptions Sweep the Magnetospheres of Jupiter, Saturn & Other Planets"  

    Could the flapping of a butterfly's wings in Costa Rica set off a hurricane in California? The question has been scrutinized by chaos theorists, stock-market analysts and weather forecasters for decades. For most people, this hypothetical scenario may be difficult to imagine on Earth - particularly when a real disaster strikes. Yet, in space, similarly small fluctuations in the solar wind as it streams toward the Earth's magnetic shield actually can affect the speed and stre

2017-09-19 13:30:22
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Water Worlds of the Universe Revealed --"Date Back to the Big Bang"  

    During almost four years of observing the cosmos, the Herschel Space Observatory traced out the presence of water. With its unprecedented sensitivity and spectral resolution at key wavelengths, Herschel revealed this crucial molecule in star-forming molecular clouds, detected it for the first time in the seeds of future stars and planets, and identified the delivery of water from interplanetary debris to planets in our solar system. Out to much grander scales, beyond our sol

2017-09-19 09:30:46
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NASA Astrobiologists --"Life On Saturn's Enceladus and Alien Bodies May Have Exotic Molecular Structures" (WATCH Video)  

    NASA astrobiologists say that we must recognize that life on Enceladus or other alien bodies may have originated by a process very different from the process by which life emerged on Earth. Alternatively, alien life may have originated in the same way as terran life but did not evolve as fast or as far as the terran biosphere. For example, if we accept the "RNA world" as part of a model for natural history on Earth, visits to the terran biosphere on early Earth would not ...

2017-09-19 08:05:12
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"It's the Space Race of the 21st century" --The Major Roadblock to a Quantum Computer May Just Have Been Solved (WATCH Today's 'Galaxy' Stream)  

    The quantum computer has the potential to revolutionize the 21st century, solving problems so massively complex th today's computers would take a century to solve. But a single quantum computer is still no match for the more than billion classical computers currently in use. But, as with classical computers, quantum computers need a quantum internet, and researchers at The Australian National University may have found the perfect way to store quantum data long enough to sha...

2017-09-19 06:45:57
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EcoAlert: NASA Sees Maria's "Hot Towers" Intensify Into Another Epic Category 5 Hurricane  

    NASA and NOAA satellites have provided data on Maria as it strengthened into a major Hurricane headed toward the Leeward Islands. NASA's Aqua satellite provided an infrared look at Maria that showed cooling cloud top temperatures and NOAA's GOES satellite provided an animation of imagery that showed the storm developing and strengthening. The GPM satellite found "Hot" towering clouds that indicated strengthening was occurring before Maria became a major hurricane.  

2017-09-19 03:00:00
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Mars' Gale Crater --"May Have Revealed the Building Blocks of RNA" (Today's Most Popular)  

      Whether Martian life has ever existed is still unknown. No compelling evidence for it has been found. When Curiosity landed in Mars' Gale Crater in 2012, the mission's main goal was to determine whether the area ever offered a habitable environment, which has since been confirmed. "We detected borates in a crater on Mars that's 3.8 billion years old, younger than the likely formation of life on Earth," said Patrick Gasda, a postdoctoral researcher at Los Alamos Natio

2017-09-18 08:06:26
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Last Week's Top 5 Space & Science Headlines --"Mission Control Live Summing-Up of Cassini Discoveries to New Theory of the Big Bang"  

  "Catastrophic" to "Unknown" --New Global Climate-Change Scenarios Not Experienced in Past 20 Million Years New Quantum Gravity Theory of the Big Bang --"We Need Another Picture of the Early Infant Universe" DON'T MISS THIS! "Changing the Paradigm of Where We Look for Life" --WATCH NASA Mission Control Live: Epic Discoveries & Fiery Death of Cassini's 13-Year Mission (Today's 'Galaxy' Stream) "Acceleration of Our Universe May Not Be Real" --Royal Astronomical Society 100,000 Ne

2017-09-18 07:33:58
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The Star-Trek Observatory --'Discovery' TV Series Premieres with "The Vulcan Hello" September 24 (WATCH Preview)  

    "All life is born of chaos." So begins the new Star Trek epic. Critics are raving that Star Trek: Discovery will Be the next 'Game of Thrones' that could go where no TV show has gone before. As the starships Discovery and Shenzhou approach at warp speed, and with only six days to to go before the premiere of Star Trek: Discovery, the producers have revealed the title of the first episode, "The Vulcan Hello." The episode's title may reveal signal how it could focus on ...

2017-09-18 03:00:00
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NASA RADIO --Three Cassini Scientists Tell Us What They Learned from the Epic Mission (LISTEN Today's 'Galaxy' Stream)  

    Listen to a podcast conversation with three members of the original Cassini science team in a special episode in honor of the Cassini mission, which came to its dramatic close on September 15: Jeff Cuzzi, the mission's interdisciplinary scientist for rings; Dale Cruikshank, an astronomer and planetary scientist studying Saturn's icy moons; and Chris McKay, a planetary scientist and one of the original collaborators on the Huygens probe - all three from NASA's Ames Res...

2017-09-17 06:46:23
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A Galaxy's Dark Matter Halo Interacts and Links With Ordinary Matter --"A Radical Break With Prevailing Theory"  

    Identical twins are similar to each other in many ways, but they have different experiences, friends, and lifestyles. This concept is played out on a cosmological scale by galaxies. Two galaxies that appear at first glance to be very similar and effectively identical can have inner regions rotating at very different rates - the galactic analog of twins with different lifestyles. A team of physicists, led by Hai-Bo Yu of the University of California, Riverside, has found a si

2017-09-16 08:05:15
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"Aging is an Evolutionary Oversight" --Institute of Molecular Biology  

    Aubrey de Grey is convinced that he has formulated the theoretical means by which human beings might live indefinitely --in fact , that there is someone alive today who will live to be a thousand years old.In his non-fiction bestseller, Ending Aging, de Grey, champions recent progress in genetics and calorie-restricted diets in laboratory animals that hold forth the promise that someday science will enable us to exert total control over our own biological aging and substantia

2017-09-16 07:26:54
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New Quantum Gravity Theory of the Big Bang --"We Need Another Picture of the Early Infant Universe"  

    The beginning of our universe - if there is one - is one of the big open questions in theoretical physics. The big bang is one of science's great mysteries, and it seems the plot has thickened thanks to new research that refutes prevailing theories about the birth of the universe. A classical description of the big bang implies a singularity: a point of infinite smallness, at which Einstein's theory of gravity - general relativity - breaks down. To tackle this pr...

2017-09-15 12:01:58
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"Catastrophic" to "Unknown" --New Global Climate-Change Scenarios Not Experienced in Past 20 Million Years  

    A new study evaluating models of future climate scenarios has led to the creation of the new risk categories "catastrophic" and "unknown" to characterize the range of threats posed by rapid global warming. Researchers propose that unknown risks imply existential threats to the survival of humanity. These categories describe two low-probability but statistically significant scenarios that could play out by century's end, in a new study by Veerabhadran Ramanathan, a distinguis

2017-09-15 09:08:28
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WATCH NOW --NASA's News Conference on Today's Epic End of the Cassini Mission  

               

2017-09-15 08:34:07
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"Changing the Paradigm of Where We Look for Life" --WATCH NASA Mission Control Live: Epic Discoveries & Fiery Death of Cassini's 13-Year Mission (Today's 'Galaxy' Stream)  

    Mission controllers at NASA's Jet Propulsion Laboratory sent a final command Friday morning to the Cassini spacecraft orbiting Saturn, putting the craft into a suicidal dive, plunging into the ringed planet's atmosphere. Flight Director Julie Webster announced "loss of signal" at about 7:55 a.m. ET, followed by Project Manager Earl Maize announcing "end of mission" as the spacecraft began to break up in Saturn's atmosphere. "Congratulations to you all," Maize announced to ap

2017-09-15 06:47:38
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Molecules In Interstellar Ice --"Triggered the Formation of DNA on Earth"  

    "The origin of important biological molecules is one of the key fundamental questions in science," said  Dr Paul Clarke, from the University of York's Department of Chemistry. "The molecules that form the building blocks of DNA had to come from somewhere; either they were present on Earth when it formed or they came from space, hitting earth in a meteor shower. Scientists had already shown that there were particular molecules present in space that came to Earth in an ic

2017-09-15 03:30:00
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Strange Pitch-Black Exoplanet Observed by Hubble Space Telescope  

      Astronomers have discovered that the well-studied, egg-shaped exoplanet WASP-12b reflects almost no light, making it appear essentially pitch black. This discovery sheds new light on the atmospheric composition of the planet and also refutes previous hypotheses about WASP-12b's atmosphere. The results are also in stark contrast to observations of another similarly sized exoplanet. Using the Space Telescope Imaging Spectrograph (STIS) on the NASA/ESA Hubble Space Tel

2017-09-14 10:55:32
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"Acceleration of Our Universe May Not Be Real" --Royal Astronomical Society  

    The accelerating expansion of the Universe may not be real, but could just be an apparent effect, according to new research published in the journal Monthly Notices of the Royal Astronomical Society. A new study—by a group at the University of Canterbury in Christchurch, New Zealand—finds the fit of Type Ia supernovae to a model universe with no dark energy to be very slightly better than the fit to the standard dark energy model. Dark energy is usually assumed to f...

2017-09-14 07:55:41
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Astronomers Probe Origin of Planet 9 --"Captured By Our Sun?" (WATCH Today's 'Galaxy' Stream)  

    In 2016 astronomers working in the USA postulated the presence of 'Planet 9' to explain the strange orbital properties of some Edgeworth-Kuiper Belt objects. But while it isn't possible to directly observe Planet 9, it hasn't stopped theorists from trying to work out how it got there. Planet 9 is at least 10 times bigger than Earth, making it unlikely that it formed at such a large distance from the sun. Instead, it has been suggested it either moved there from the inner regi

2017-09-14 07:14:13
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"Inferno Alien World With Titanium Skies" --ESO's Very Large Telescope Detects Extreme Exoplanet (WATCH Today's 'Galaxy' Stream)  

    A team of astronomers led by Elyar Sedaghati, an ESO fellow and recent graduate of TU Berlin, has examined the atmosphere of the exoplanet WASP-19b in greater detail than ever before. This remarkable planet has about the same mass as Jupiter, but is so close to its parent star that it completes an orbit in just 19 hours and its atmosphere is estimated to have a temperature of about 2000 degrees Celsius. The astronomers used the ESO's Very Large Telescope to detect titanium...

2017-09-13 20:33:59
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NASA's New Gravity Map of Mars --Reveals Red Planet's Interior & Evolution  

      "As this story comes together, we're coming to the conclusion that it's not enough just to know the composition of the rocks," said Goddard planetary geologist Greg Neumann, a co-author on the paper. "We also need to know how the rocks have been reworked over time."  NASA scientists have found evidence that Mars' crust is not as dense as previously thought, a clue that could help researchers better understand the Red Planet's interior structure and evolution.

2017-09-13 14:52:35
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Earth's Vital Signs: China Measures Ocean Warming --"A Warning to the World"  

  Humans have released carbon dioxide and other greenhouse gases, and the result is an accumulation of heat in the Earth's climate system, commonly referred to as "global warming". "How fast is the Earth's warming?" is a key question for decision makers, scientists and general public. Previously, the global mean surface temperature has been widely used as a key metric of global warming. However, a new study published in AGU's Eos proposed a better way of measuring global warming: mon

2017-09-13 14:41:12
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"One-of-a-Kind Mystery Star" --Varies in Brightness By Minutes and Hours (Today's 'Galaxy' Stream)  

    Astronomers studying the unique binary star system AR Scorpii have discovered the brightness of the system has changed over the past decade. The new evidence lends support to an existing theory of how the unusual star emits energy. AR Scorpii consists of a rapidly spinning, magnetized white dwarf star that mysteriously interacts with its companion star. A white dwarf is a very dense remnant of a star like the sun. When a solar-like star runs out of energy, gravity compresses

2017-09-13 07:42:37
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"Milky Way Mystery" --Astronomers Probe Ancient Origins of the Terzan 5 Globular Cluster  

    The Milky Way is chock full of star clusters. Some contain just a few tens-to-hundreds of young stars. Others, known as globular clusters, are among the oldest objects in the Universe and contain up to a million ancient stars. Some of these globular clusters are thought to be fragments of our galaxy, chiseled off when the Milky Way was in its infancy. Others may have started life as standalone dwarf galaxies before being captured by the Milky Way during its formative years.

2017-09-13 07:13:11
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NASA: Solar "Irma" Observed --Sun Erupts with an X8.2 Flare (WATCH Video)  

    The sun emitted a significant solar flare, peaking at 12:06 p.m. EDT on Sept. 10, 2017 captured on video below. NASA's Solar Dynamics Observatory, which watches the sun constantly, captured an image of the event. Solar flares, among the solar system's mightiest eruptions, are tremendous explosions in the atmosphere of the Sun capable of releasing as much energy as a billion megatons of TNT. Caused by the sudden release of magnetic energy, in just a few seconds flares can acc

2017-09-12 10:11:46
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100,000 Nearby Galaxies Reveal No Signs of Advanced Technological Civilizations --"One May Have Existed Right Here in Our Neighborhood"  

    After examining some 100,000 nearby large galaxies in 2015 a team of researchers lead by The Pennsylvania State University astronomer Jason Wright concluded that none of them contain any obvious signs of highly advanced technological civilizations. Turning his focus closer to home this past spring of 2017, Wright proposed that an advanced civilization—an indigenous technological species could have arisen in the solar system before Erath-bound life did. Wright suggests that ...

2017-09-12 08:38:31
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NASA's Cassini Spacecraft's Final Flyby Today of Saturn's Moon Titan --"Could Organic Molecules in Its Vast Lakes Form Cell-Like Structures?" (Today's 'Galaxy' Stream)  

    NASA's Cassini spacecraft is headed toward its Sept. 15 plunge into Saturn, following a final, distant flyby of the planet's giant "Early-Earth-like" moon, Titan. The intrepid spacecraft made its closest approach to Titan today at 12:04 p.m. PDT (3:04 p.m. EDT), at an altitude of 73,974 miles (119,049 kilometers) above the moon's surface, and scheduled to make contact with Earth on Sept. 12 at about 6:19 p.m. PDT (9:19 p.m. EDT). Images and other science data taken during the

2017-09-12 07:33:09
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First Super-Deep 'Dark-Energy' View of the Structure of the Universe --New CHIME Radio Telescope "Sees in a Radically Different Way" (VIDEO)  

    Radio telescope will help the world's astronomers, physicists and scientists unravel today's biggest cosmic mysteries. A Canadian effort to build CHIME, Canadian Hydrogen Intensity Mapping Experiment, one of the most innovative radio telescopes in the world will open the universe to a new dimension of scientific study. The final piece of this new radio telescope has been installed, which will act as a time machine allowing scientists to create a three-dimensional map of th...

2017-09-12 06:54:27
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Last Week's Top 5 Space & Science Headlines --"From Antarctica's 'Lost World' to NASA Nixes Alien Megastructure"  

      "Nix the Aliens" --NASA Space Telescopes Provide an Answer to Enduring Mystery of Tabby's 'Megastructure' Star (VIDEO) "Lost World!" --Antarctica's Unexplored Volcano Caves Harbor Unknown Species Is Our Solar System Being Watched? --"Tens of Alien Worlds Could Be Observing Us" New Gigantic Black Hole Discovered by Hubble --"Is This Monster the Tip of an Iceberg?" "Ultraviolet Light May Be the Trigger that Jumpstarts Life in the Cosmos" --Harvard Smithsonian

2017-09-11 07:10:16
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"Search for a Second Genesis" --The "Webb" -Hubble's Science-Centric Successor- to Probe Oceans of Enceladus and Europa" (WATCH Today's 'Galaxy' Stream)  

  "We chose these two moons because of their potential to exhibit chemical signatures of astrobiological interest," said Heidi Hammel, executive vice president of the Association of Universities for Research in Astronomy (AURA), selected by NASA as an interdisciplinary scientist for Webb who is leading an effort to use the telescope to study objects in Earth's solar system. NASA's James Webb Space Telescope will use its infrared capabilities to study the "ocean worlds" of Jupiter'

2017-09-11 06:31:23
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Shape-Shifting Elliptical Galaxies --"Explosive Creation of Stars"  

    Astronomers found that active star formation upswells galaxies, like yeast helps bread rise. Using three powerful telescopes on the ground and in orbit, they observed galaxies from 11 billion years ago and found explosive formation of stars in the cores of galaxies. This suggests that galaxies can change their own shape without interaction with other galaxies. "Massive elliptical galaxies are believed to be formed from collisions of disk galaxies," said Ken-ichi Tadaki, the

2017-09-10 17:29:47
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"Ultraviolet Light May Jumpstart Life in the Cosmos" --Harvard Smithsonian Center for Astrophysics  

    As much as ultraviolet light could render some planets too dry for life around TRAPPIST-1 and other M dwarfs, another new study found a dearth of it may also make these red stars uninhabitable for life as we know it. Using computer models and the known properties of red dwarfs, researchers found that such stars might not emit enough of the long-wavelength, medium-energy ultraviolet light that likely helped trigger chemical processes key to the rise of biology on Earth and mig

2017-09-10 06:39:53
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"Nix the Aliens" --NASA Space Telescopes Provide an Answer to Enduring Mystery of Tabby's 'Megastructure' Star (VIDEO)  

  "The dips found by Kepler are real. Something seems to be transiting in front of this star and we still have no idea what it is!" said German astronomer Michael Hippke this past May. Even if aliens are not involved, Tabby's star remains "the most mysterious star in the universe" as Yale astronomer Tabetha Boyajian described KIC 8462852, popularly known as Tabby's star. Now, new research led by Huan Meng, an astronomer at the University of Arizona concludes that a microscopic du

2017-09-09 07:31:49
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Is Our Solar System Being Watched? --"Tens of Alien Worlds Could Be Observing Us"  

    An international team of astronomers estimate that there should be approximately ten currently undiscovered worlds which are favorably located to detect the Earth and are capable of sustaining life as we know it. To date however, no habitable planets have been discovered from which a civilization could detect the Earth with our current level of technology. A group of scientists from Queen's University Belfast and the Max Planck Institute for Solar System Research in Germ

2017-09-08 09:27:47
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"Lost World!" --Antarctica's Unexplored Volcano Caves Harbor Unknown Species  

    Australian researchers said that Mount Erebus, an active volcano on Antarctica's Ross Island, is surrounded by caves hollowed out in the ice by steam. Soil samples retrieved from the caves have revealed intriguing traces of DNA from mosses, algae and small animals. Some of the DNA matched known species, others didn't. A secret world of animals and plants—including unknown species—may live in warm caves under Antarctica's glaciers, according to research published in the j...

2017-09-08 08:43:15
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'Beyond Saturn' --NASA: "Cassini Transformed Our Thinking" (WATCH Today's 'Galaxy' Stream)  

    As the Cassini spacecraft nears the end of a long journey rich with scientific and technical accomplishments, it is already having a powerful influence on future exploration. In revealing that Saturn's moon Enceladus has many of the ingredients needed for life, the mission has inspired a pivot to the exploration of "ocean worlds" that has been sweeping planetary science over the past decade. "Cassini has transformed our thinking in so many ways, but especially with regard to

2017-09-08 07:04:19
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Organics Discovery at Mars' Gale Crater Hints at Existence of RNA and Ancient Life  

      "Because borates may play an important role in making RNA--one of the building blocks of life--finding boron on Mars further opens the possibility that life could have once arisen on the planet," said Patrick Gasda, a postdoctoral researcher at Los Alamos National Laboratory and lead author. "Borates are one possible bridge from simple organic molecules to RNA. Without RNA, you have no life. The presence of boron tells us that, if organics were present on Mars, these

2017-09-07 09:01:45
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Rethinking Life on Earth --"We're Rapidly Evolving to a New Epoch" (WATCH Today's 'Galaxy' Stream)  

    Earth is transitioning from a Kardashev Scale Class IV—marked by a thick biosphere and life having some effect on the planet—to the final Class V, where a planet is profoundly affected by the activity of an advanced, energy-intensive species. For decades, as astronomers have imagined advanced extraterrestrial civilizations, they categorized such worlds by the amount of energy their inhabitants might conceivably be able to harness and use. They sorted the hypothetica...

2017-09-07 07:22:23
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Astronomers Use Our Sun to Predict Habitability of Alien Star Planets --"Good News for Life in the Cosmos"  

    A new study using data from NASA's Chandra X-ray Observatory and ESA's XMM-Newton suggests X-rays emitted by a planet's host star may provide critical clues to just how hospitable a star system could be. A team of researchers looked at 24 stars similar to the Sun, each at least one billion years old, and how their X-ray brightness changed over time. Since stellar X-rays mirror magnetic activity, X-ray observations can tell astronomers about the high-energy environment around

2017-09-07 06:54:39
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The Elusive "New Physics" --CERN Creates LHC "SciFi" technology to Probe Deeper Into the Dark Cosmos  

    "If the LHC doesn't have enough power to uncover new physics, it's all over for my generation of physicists!" says Aurelio Bay at the Ecole Polytechnique Federale de Lausanne's Laboratory for High Energy Physics. "We will have to come up with a new machine, for the next generation. What we will essentially be doing is tracing these particles' journey back to their starting point. This should give us some insight into what happened 14 billion years ago, before antimatter disap

2017-09-06 06:56:05
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Odd Behavior of Pulsars Observed --"Orbiting its Star as a Binary Pair Surrounded By Remnants of a Supernova Explosion"  

    A team of scientists from the Middle East Technical University and Baskent University in Turkey have discovered a sudden change in the rotation speed of the peculiar pulsar SXP 1062, located in the Small Magellanic Cloud, a satellite galaxy of our own Milky Way galaxy, and one of our nearest intergalactic neighbors at 200,000 light years away. These jumps in frequency, known as 'glitches', are commonly seen in isolated pulsars, but have so far never been observed in binary p

2017-09-06 03:00:00
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"Alien Air" --Proposed NASA Mission to Probe 1000 Exoplanet Atmospheres (VIDEO)  

    One of NASA's proposed missions, known as the Fast INfrared Exoplanet Spectroscopy Survey Explorer (FINESSE), could greatly improve our understanding of extrasolar worlds. If selected for development, the spacecraft will investigate at least 500 exoplanet atmospheres, providing detailed information about climate processes on distant alien planets. The mission's main objective is to study the processes that govern planet formation and global climate. It will investigate t...

2017-09-05 12:38:34
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Scientists Probe --"Are the Laws of Physics the Same Everywhere in the Observable Universe"  

    A study that will 'test our understanding of how the Universe works, particularly outside the relatively narrow confines of our planet' is being undertaken by an international team of researchers led by the University of Leicester. The research probes whether the fundamental laws of physics are the same everywhere in the universe. In their new study the team assesses whether these laws are the same within the hot, dense conditions in the atmosphere of a dying white dwarf star

2017-09-05 09:46:29
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New Gigantic Black Hole Discovered by Hubble --"Is This Monster the Tip of an Iceberg?"  

    "The newly discovered supersized black hole resides in the center of a massive elliptical galaxy, NGC 1600, located in a cosmic backwater, a small grouping of 20 or so galaxies," said lead discoverer Chung-Pei Ma, a University of California-Berkeley astronomer and head of the MASSIVE Survey, a study of the most massive galaxies and supermassive black holes in the local universe. While finding a gigantic black hole in a massive galaxy in a crowded area of the universe is t...

2017-09-05 07:29:50
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New NASA Research --"Earth's Primordial Soup was Teeming with the Precursors for Life"  

    The primordial soup that sloshed around billions of years ago, and eventually led to first life on our planet, might have been teeming with primal precursors of proteins. Ancestors of the first protein molecules, which are key components of all cells, could have been bountiful on pre-life Earth, according to a new study led by researchers at the Georgia Institute of Technology, who formed hundreds of possible precursor molecules in the lab. Then they meticulously analyzed the

2017-09-05 06:37:00
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StarTalk Radio --Neil DeGrasse Tyson Explores the Dark Mysteries of the Universe  

    Join Neil deGrasse Tyson as he explores the dark mysteries of our cosmos, from the infinitesimal electron to the higher dimensions of the multiverse. You'll find out whether photons have mass, why the Moon doesn't really orbit the Earth, and how many stars are born each day in our galaxy's stellar nurseries. Neil explains how neutron stars could become black holes and why space is anything but dark, ablaze in microwaves and other energy beyond visible light. At times, ...

2017-09-04 08:12:08
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"Beyond Fermi" -- Crab Nebula's Neutron Star May Solve the Mystery of Cosmic Rays  

    The Crab Nebula, the remnant of a supernova explosion that was observed by Chinese and other astronomers in the year 1054, and one of the best-studied objects in the history of astronomy, may solve the mystery of cosmic rays. The nebula emits radiation across the entire electromagnetic spectrum, from gamma rays, ultraviolet and visible light, to infrared and radio waves. Most of what we see comes from very energetic particles (electrons), and astrophysicists can construct det

2017-09-04 06:33:25
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"Ancient Hominin or Mystery Primate?" --5.7 Million Year Old 'Unmistakably Human' Footprints Discovered   

    In a discovery that could challenge accepted theories of human evolution, researchers found 5.7 million years old unmistakably human-like footprints laid down in what is now Crete, that could belong to a previously unknown primate, and perhaps even an ancient hominin — an animal more closely related to humans than to chimps. The finding could take the trail of early human evolution beyond Africa. Earlier studies had suggested that all fossil hominins older than 1.8 million ...

2017-09-03 07:13:50
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"Ancient Hominin or Mystery Primate?" --5.7 Million Year Old 'Unmistakably Human' Footprints Discovered   

    In a discovery that could challenge accepted theories of human evolution, researchers found 5.7 million years old unmistakably human-like footprints laid down in what is now Crete, that could belong to a previously unknown primate, and perhaps even an ancient hominin — an animal more closely related to humans than to chimps. The finding could take the trail of early human evolution beyond Africa. Earlier studies had suggested that all fossil hominins older than 1.8 million ...

2017-09-03 07:13:50
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'Alien!' --Opposition Mounts to Trump's Pick of Bridenstine to Head NASA: “A Politician Shouldn't Lead USA's Space Program"  

      In contrast to NASA's former head, Charles Frank Bolden, Jr. (see video below),  a retired United States Marine Corps Major General, and a former NASA astronaut and 1968 graduate of the United States Naval Academy, Florida's Republican Marco Rubio and Democrat Bill Nelson are voicing opposition to President Donald Trump's pick for NASA administrator, Oklahoma Congressman Jim Bridenstine, saying a "politician" shouldn't lead the nation's space progra...

2017-09-02 16:55:40
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'Alien!' --Opposition Mounts to Trump's Pick of Bridenstine to Head NASA: “A Politician Shouldn't Lead USA's Space Program"  

      In contrast to NASA's former head, Charles Frank Bolden, Jr. (see video below),  a retired United States Marine Corps Major General, and a former NASA astronaut and 1968 graduate of the United States Naval Academy, Florida's Republican Marco Rubio and Democrat Bill Nelson are voicing opposition to President Donald Trump's pick for NASA administrator, Oklahoma Congressman Jim Bridenstine, saying a "politician" shouldn't lead the nation's space progra...

2017-09-02 16:55:40
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Kickstart Your Day With "The Daily Galaxy --Great Discoveries Channel" Email Delivery  

    News and original insights on science, space exploration, cosmology, astrobiology, and astrophysics. Sign Up Free Here!        

2017-09-01 09:26:31
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Kickstart Your Day With "The Daily Galaxy --Great Discoveries Channel" Email Delivery  

    News and original insights on science, space exploration, cosmology, astrobiology, and astrophysics. Sign Up Free Here!        

2017-09-01 09:26:31
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This Week's 'Planet Earth' Report --"Human Hibernation to Release of the 'JFK Motherload' to NASA and the Future of Food"  

  Our weekly pick of interesting articles on threats, solutions, observations and odds and ends about life on our home planet. Just for fun we've tossed in a raging conspiracy theory or two. NASA Made This Technology for Space—Now, It Will Improve What We Eat "The human eye has to be one of the cruelest tricks nature ever pulled." These were Abi Ramanan's opening words in a talk called "The Future of the Food Chain," presented at Singularity University's Global ...

2017-09-01 07:49:11
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This Week's 'Planet Earth' Report --"Human Hibernation to Release of the 'JFK Motherload' to NASA and the Future of Food"  

  Our weekly pick of interesting articles on threats, solutions, observations and odds and ends about life on our home planet. Just for fun we've tossed in a raging conspiracy theory or two. NASA Made This Technology for Space—Now, It Will Improve What We Eat "The human eye has to be one of the cruelest tricks nature ever pulled." These were Abi Ramanan's opening words in a talk called "The Future of the Food Chain," presented at Singularity University's Global ...

2017-09-01 07:49:11
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5 

"A Strange, Alien World" --NASA's Juno Spacecraft Will Probe Beneath Jupiter's Cloudtops Today (WATCH Today's Galaxy' Stream)    

Secrets lie deep within Jupiter, shrouded in the solar system's strongest magnetic field and most lethal radiation belts. On July 4, 2016, NASA's Juno spacecraft plunged into uncharted territory, entering orbit around the gas giant and passing closer than any spacecraft before. "Every 53 days, we go screaming by Jupiter, get doused by a fire hose of Jovian science, and there is always something new," said Juno principal investigator Scott Bolton from the Southwest Research Instit...

2017-09-01 06:26:48
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23 

"A Strange, Alien World" --NASA's Juno Spacecraft Will Probe Beneath Jupiter's Cloudtops Today (WATCH Today's Galaxy' Stream)    

Secrets lie deep within Jupiter, shrouded in the solar system's strongest magnetic field and most lethal radiation belts. On July 4, 2016, NASA's Juno spacecraft plunged into uncharted territory, entering orbit around the gas giant and passing closer than any spacecraft before. "Every 53 days, we go screaming by Jupiter, get doused by a fire hose of Jovian science, and there is always something new," said Juno principal investigator Scott Bolton from the Southwest Research Instit...

2017-09-01 06:26:48
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97 

"Something Incredible Is Out There" --Scientists on Hunt for Signs of Extraterrestrial Intelligence Detect 15 New Cosmic Radio Bursts From Deep Space  

    As Carl Sagan was fond of saying: "Somewhere, something incredible is waiting to be known." Astronomers on the hunt for signs of extraterrestrial intelligence have detected 15 Fast Radio Bursts from a dwarf galaxy located three billion light-years away. These exotic pulses have confounded scientists since they were first discovered a decade ago by astronomers using the Parkes radio dish in Australia. The Berkeley Astronomers Telegram reports that the source of these latest...

2017-08-31 09:45:40
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9 

"Something Incredible Is Out There" --Scientists on Hunt for Signs of Extraterrestrial Intelligence Detect 15 New Cosmic Radio Bursts From Deep Space  

    As Carl Sagan was fond of saying: "Somewhere, something incredible is waiting to be known." Astronomers on the hunt for signs of extraterrestrial intelligence have detected 15 Fast Radio Bursts from a dwarf galaxy located three billion light-years away. These exotic pulses have confounded scientists since they were first discovered a decade ago by astronomers using the Parkes radio dish in Australia. The Berkeley Astronomers Telegram reports that the source of these latest...

2017-08-31 09:45:40
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19 

NASA: "Weirdest Habitable Worlds" --Hubble Hints at 1st Signs of Water on TRAPPIST-1 Dwarf Star-System Planets (WATCH Today's 'Galaxy' Stream)  

On 22 February 2017 astronomers announced the discovery of seven Earth-sized planets orbiting the ultracool dwarf star TRAPPIST-1, 40 light-years away. This makes TRAPPIST-1 the planetary system with the largest number of Earth-sized planets discovered so far. An international team of astronomers used the NASA/ESA Hubble Space Telescope to estimate whether there might be water on the seven earth-sized planets orbiting the nearby dwarf star TRAPPIST-1. The results suggest that the outer p

2017-08-31 08:24:29
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2 

NASA: "Weirdest Habitable Worlds" --Hubble Hints at 1st Signs of Water on TRAPPIST-1 Dwarf Star-System Planets (WATCH Today's 'Galaxy' Stream)  

On 22 February 2017 astronomers announced the discovery of seven Earth-sized planets orbiting the ultracool dwarf star TRAPPIST-1, 40 light-years away. This makes TRAPPIST-1 the planetary system with the largest number of Earth-sized planets discovered so far. An international team of astronomers used the NASA/ESA Hubble Space Telescope to estimate whether there might be water on the seven earth-sized planets orbiting the nearby dwarf star TRAPPIST-1. The results suggest that the outer p

2017-08-31 08:24:29
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20 

ALMA Observatory Detects Huge Hidden Reservoirs of Fuel That Feed Starburst Galaxies  

A team led by Edith Falgarone (Ecole Normale Superieure and Observatoire de Paris, France) has used the Atacama Large Millimeter/submillimeter Array to detect signatures of the carbon hydride CH+ in distant starburst galaxies, known for a much higher rate of star formation compared to sedate Milky Way-like galaxies, making these structures ideal to study galaxy growth and the interplay between gas, dust, stars, and the black holes at the centers of galaxies. First detection of CH+ mole...

2017-08-31 07:20:05
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7 

ALMA Observatory Detects Huge Hidden Reservoirs of Fuel That Feed Starburst Galaxies  

A team led by Edith Falgarone (Ecole Normale Superieure and Observatoire de Paris, France) has used the Atacama Large Millimeter/submillimeter Array to detect signatures of the carbon hydride CH+ in distant starburst galaxies, known for a much higher rate of star formation compared to sedate Milky Way-like galaxies, making these structures ideal to study galaxy growth and the interplay between gas, dust, stars, and the black holes at the centers of galaxies. First detection of CH+ mole...

2017-08-31 07:20:05
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12 

"The Black Hole Paradox" --New Theory Says Soon After Big Bang, Black Holes Lit Up the Universe  

    Soon after the Big Bang, the universe went completely dark. The intense, seminal event that created the cosmos churned up so much hot, thick gas that light was completely trapped. Much later—perhaps as many as one billion years after the Big Bang—the universe expanded, became more transparent, and eventually filled up with galaxies, planets, stars, and other objects that give off visible light. That's the universe we know today. How it emerged from the cosmic dark ages t...

2017-08-30 09:14:24
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19 

"The Black Hole Paradox" --New Theory Says Soon After Big Bang, Black Holes Lit Up the Universe  

    Soon after the Big Bang, the universe went completely dark. The intense, seminal event that created the cosmos churned up so much hot, thick gas that light was completely trapped. Much later—perhaps as many as one billion years after the Big Bang—the universe expanded, became more transparent, and eventually filled up with galaxies, planets, stars, and other objects that give off visible light. That's the universe we know today. How it emerged from the cosmic dark ages t...

2017-08-30 09:14:24
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19 

Hell & High Water: "Houston Was Warned" --The Inside Story of the Impact of Hurricane Harvey  

    "Houston's perfect storm is coming — and it's not a matter of if but when," journalists wrote, a year and a half ago. "Why isn't Texas ready?" The story below was a joint project of The Texas Tribune, an excellent local publication, and ProPublica, writes David Leonhardt in the New York Times. Headlined "Hell and High Water," it exposed the lack of preparedness, and downright denial, in Houston about flood damage and the climate change of our warmin...

2017-08-30 06:27:08
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5 

Hell & High Water: "Houston Was Warned" --The Inside Story of the Impact of Hurricane Harvey  

    "Houston's perfect storm is coming — and it's not a matter of if but when," journalists wrote, a year and a half ago. "Why isn't Texas ready?" The story below was a joint project of The Texas Tribune, an excellent local publication, and ProPublica, writes David Leonhardt in the New York Times. Headlined "Hell and High Water," it exposed the lack of preparedness, and downright denial, in Houston about flood damage and the climate change of our warmin...

2017-08-30 06:27:08
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35 

Space Travel "Transforms Astronauts' Bodies at the Molecular Level"  

The effects of spaceflight on the human body have been studied actively since the mid-20th century. It is widely known that space conditions influence metabolism, thermoregulation, heart biorhythms, muscle tonus, the respiration system and other physiological aspects of the human body function. However, the molecular mechanisms which drive the physiological changes caused by space flights remain unknown. A team of scientists from Russia and Canada has analyzed the effect of space cond

2017-08-30 03:00:00
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5 

NASA's Official Calendar of the First-of-Its-Kind Event at Saturn --"Fiery Death Plunge Nears for Cassini Spacecraft"  

  "The Cassini mission has been packed full of scientific firsts, and our unique planetary revelations will continue to the very end of the mission as Cassini becomes Saturn's first planetary probe, sampling Saturn's atmosphere up until the last second," said Linda Spilker, Cassini project scientist from NASA's Jet Propulsion Laboratory in Pasadena, California. "We'll be sending data in near real time as we rush headlong into the atmosphere -- it's truly a first-of-its-kind event at Sat

2017-08-29 20:14:06
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52 

"Beyond Biology" --MIT's Max Tegmark on Life 3.0: Being Human in the Age of Artificial Intelligence" (VIDEO)  

    Despite the most powerful technologies we have today, all life forms we know of remain fundamentally limited by their biological hardware. None can live for a million years, memorize all of Wikipedia, understand all known science or enjoy spaceflight without a spacecraft. None can transform our largely lifeless cosmos into a diverse biosphere that will flourish for billions or trillions of years, enabling our universe to finally fulfill its potential and wake up fully. All th

2017-08-29 19:40:02
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44 

The James Webb --Most Powerful Known Telescope in the Universe Threatened by Harvey's Rising Floodwaters (VIDEO)  

Isolated in a giant thermal vacuum chamber, NASA's $8.6 billion next-generation observatory is riding out the worst of Hurricane Harvey, sitting inside a massive, sealed cryogenic chamber at the Johnson Space Center, home of the nation's astronaut corps and the control center for the International Space Station, JSC is the heart of NASA's human spaceflight program, a sprawling NASA facility in southeast Houston surrounded by rising floodwaters that some estimates put at 20 trillion ga...

2017-08-29 07:04:08
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9 

The "Z" Machine --World's Most Powerful X-Ray Duplicates a Black Hole's Disk Upending Existing Theories (WATCH Today's 'Galaxy' Stream)  

Models showing what happens to matter just before it is sucked into a black hole may need to be revised after laboratory experiments using the world's most powerful X-ray machine contradicted one of our best theories performed at Sandia National Laboratories' Z machine, the most energetic laboratory X-ray source on Earth, can that can duplicate the X-rays surrounding black holes that otherwise can be watched only from a great distance and then theorized about. "Of course, emission dir...

2017-08-29 06:18:44
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16 

NASA's Next Mars Mission to Investigate Interior of Red Planet --"Pristine Evidence of Its Infancy"  

    "Because the interior of Mars has churned much less than Earth's in the past three billion years, Mars likely preserves evidence about rocky planets' infancy better than our home planet does," said InSight Principal Investigator Bruce Banerdt of NASA's Jet Propulsion Laboratory. The long form of InSight's name is Interior Exploration using Seismic Investigations, Geodesy and Heat Transport. The mission will place a stationary lander near Mars' equator. With two solar panels

2017-08-29 05:51:51
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29 

Galaxy Clusters of the Cosmos --"May Unlock the Secrets of Dark Matter and Dark Energy"   

    It's a cosmic irony: the biggest things in the universe can also be the hardest to find. A single galaxy cluster can be as massive as a quadrillion suns, yet faraway clusters are so faint that they are practically invisible to all but the biggest Earth-bound telescopes. Distant clusters hold pieces of the story of how the web-like structure of the universe first emerged and could help illuminate the true nature of dark energy and dark matter. Now, a Boston University team le

2017-08-28 12:20:24
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21 

Biological Teleporter Could Seed Life Through the Milky Way (Today's 'Galaxy' Stream)  

    "We have been dreaming, for about a decade, of the ability to fax life forms," says Juan Enriquez, an executive with Excel Ventures, a venture capital firm, who imagines a new Industrial Revolution with the "digital-biological converter" as the cotton gin in a new report by MIT's Technology Review. Craig Venter, the renegade biologist who founded Synthetic Genomics in 2005, but no longer takes a day-to-day role in its activities, has said he even thinks it will be po...

2017-08-28 08:25:09
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9 

Astronomers Enhance Kepler Mission "K2" Probe of the Pleiades for Habitable Planets (VIDEO)  

An international team of astronomers has used a new algorithm to enhance observations from the NASA Kepler Space Telescope in its K2 Mission and perform the most detailed study yet of the variability of the Seven Sisters star cluster. Their new algorithm has the precision that will be needed for Kepler and future space telescopes such as the NASA Transiting Exoplanet Survey Satellite to detect planets transiting stars as bright as our neighboring star Alpha Centauri. These nearby bright

2017-08-28 06:39:20
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11 

Today's 'Insight' --Magnetic Fields of Galaxies: "A Million Times Weaker Than That of Earth"  

The magnetic field of a distant galaxy shown above is estimated to be much the same strength and configuration as that of the Milky Way - evidence suggesting magnetic fields form while galaxies are young and remain relatively stable. "This means that magnetism is generated very early in a galaxy's life by natural processes, and thus that almost every heavenly body is magnetic," says co-author Bryan Gaensler of the University of Toronto. "The implication is that we need to understand ma...

2017-08-28 03:10:00
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55 

NASA Explores an Extreme Rover for Extreme Venus --"No Spacecraft has Survived Its Surface Heat and Sulfuric Acid for more than Two Hours"    

By avoiding electronics, a NASA rover might be able to better explore Venus. The planet's hellish atmosphere creates pressures that would crush most submarines. Its average surface temperature is 864 degrees Fahrenheit (462 degrees Celsius), high enough to melt lead. A good watch can take a beating and keep on ticking. With the right parts, can a rover do the same on a planet like Venus? A concept inspired by 'steampunk' clockwork computers and World War I tanks could one day help us fi

2017-08-27 12:03:37
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46 

Life is the Inevitable Outcome of Physics --"It's as Unsurprising as Rocks Rolling Downhill" (WATCH Today's 'Galaxy' Stream)  

The biophysicist Jeremy England, a 35-year-old associate professor at the Massachusetts Institute of Technology, made waves in 2013 with a new theory that cast the origin of life as an inevitable outcome of thermodynamics, reports Quanta Magazine, when under certain conditions, groups of atoms will naturally restructure themselves so as to burn more and more energy, facilitating the incessant dispersal of energy and the rise of "entropy" or disorder in the universe. England said this...

2017-08-27 08:08:19
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24 

The Great White Spot! New Video of Hurricane Harvey from the International Space Station --"Up to 20 Trillion Gallons of Water"  

Meteorologist Ryan Maue said 20 trillion gallons of water could fall on Texas in the next week. Michael Lowry of the University Corporation for Atmospheric Research said that more than 60,000 square miles are under high or moderate risk for excessive rainfall through Sunday morning. Related articlesRocky Planet with a 3-Day Orbit --"Only 21 Light-Years Away"NASA's Virtual Planetary Laboratory --A New "Systems" Approach to the Search for Alien Life"Our Early Solar System Harbored S

2017-08-27 06:06:46
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52 

NASA's James Webb Space Telescope --Infrared Eye of Hubble's Successor Will Probe 'Ocean Worlds' for Chemical Signatures of Biology   

    NASA's James Webb Space Telescope will use its infrared capabilities to study the "ocean worlds" of Jupiter's moon Europa and Saturn's moon Enceladus, adding to observations previously made by NASA's Galileo and Cassini orbiters. "We chose these two moons because of their potential to exhibit chemical signatures of astrobiological interest," said NASA astronomer Heidi Hammel. Europa and Enceladus are on the Webb telescope's list of targets chosen by guaranteed time obs

2017-08-26 07:51:43
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75 

"The Next Frontier" --LIGO May Be On the Verge of Announcing Major Gravitational Wave Discovery from Exotic New Source  

    At 6:07 today, August 25, LIGO, the Laser Interferometer Gravitational-Wave Observatory in Louisiana and Washington state, tweeted: "A very exciting @LIGO - VIRGO observing run is drawing to a close." If rumors leaking from LIGO who has recently partnered with a second experiment in Europe, known as VIRGO, to cast a wider net, are to be believed, the world might be in for a big gravitational wave announcement that astrophysicists might have detected gravitational waves from

2017-08-25 07:36:48
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75 

NASA Takes an In-Depth Infrared & Visible Look at Hurricane Harvey (WATCH Today's 'Galaxy' Stream)  

  As Hurricane Harvey continued to strengthen, NASA analyzed the storm's rainfall, cloud heights and cloud top temperatures. NASA's GPM and Aqua satellite provided information while an animation of GOES-East satellite imagery showed Harvey's progression toward the Texas coast. Harvey's intensification has been aided by movement through an environment that includes low vertical wind shear and the warm waters in the Gulf of Mexico. The Global Precipitation Mission (GPM) core observato

2017-08-25 03:30:00
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69 

China's "Station of Extreme Light" to Probe Secrets of the Universe --World's Most Powerful New Laser Can Simulate a Massive Star or Black Hole    

In 2016, the Shanghai Institute of Optics and Fine Mechanics created the world's highest peak power pulsed lasers - intense lasers that generate beams in extremely short bursts - clocking in at 5.3 quadrillion watts (a quadrillion is 1 followed by 15 zeros) in less than 30 quadrillionths of a second --a laser 20 times stronger than the most powerful in existence. It's now building an even stronger one, which can produce 100 quadrillion watts - about 50,000 times the planet's total power

2017-08-24 06:57:10
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6 

2017 Total Eclipse --The International Space Station Image and NASA's EPIC Video   

Monday's total solar eclipse swept across the US for the first time in almost a century providing an image of the International Space Station's (ISS) transit across the sun during the breathtaking event as it orbits 250 miles (400 km) above Earth. An amateur astronomer has now released a video of this transit taken from a remote reservation in Wyoming,, showing the huge space station gliding across the bright orange solar surface. The ISS transit footage follows the rel

2017-08-24 03:00:00
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32 

"Puzzling Galaxies" --Found Hidden in Massive Cluster Where No One Would Have Expected Them  

Are the stars in ultra-diffuse galaxies gravitationally bound due to an especially high dark matter content? Our solar system is located amid an enormous galaxy composed of billions of stars, the Milky Way. About 3,000 stars can be seen with the naked eye. However, if Earth were located in an ultra-diffuse galaxy, only a few dozen stars and a "trace" of a galaxy would be visible in the night sky. These special classes of galaxy, so named for their extremely diffuse appearance, apparently

2017-08-23 07:33:02
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57 

"Antares: The Dying Supergiant" --Astronomers Capture 1st Map Ever of Any Star Other Than the Sun  

      To the unaided eye the famous, bright star Antares shines with a strong red tint in the heart of the constellation of Scorpius. It is a huge and comparatively cool red supergiant star in the late stages of its life, on the way to becoming a supernova. Antares is considered by astronomers to be a typical red supergiant. These huge dying stars are formed with between nine and 40 times the mass of the Sun. When a star becomes a red supergiant, its atmosphere extends ou

2017-08-23 07:31:31
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43 

"Asteroid Winters" --A World Without Photosynthesis Doomed the Dinosaurs (WATCH Today's 'Galaxy' Stream)  

    "The extinction of many of the large animals on land could have been caused by the immediate aftermath of the impact, but animals that lived in the oceans or those that could burrow underground or slip underwater temporarily could have survived," said National Center for Atmospheric Research (NCAR) scientist Charles Bardeen, who led the study. "Our study picks up the story after the initial effects -- after the earthquakes and the tsunamis and the broiling. We wanted to look

2017-08-22 08:40:10
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41 

"It's Raining Diamonds on Neptune" --Researchers Uncover the Inner Workings the Cosmic Ice Giant  

"Our experiments are also providing us with better insights into the structure of exoplanets," says Dominik Kraus, who is the head of a Helmholtz Junior Research Group at HZDR. Researchers can measure two main metrics in these cosmic giants outside of our solar system: The first one is mass, based on positional changes of the mother star; and the other is its radius, derived from the shadow that is cast as the planet passes a star. The relation between these two metrics offers clues a

2017-08-22 07:11:23
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46 

"The Right Stuff" --Astronauts Will Recycle Biology Into Critical Tools for Long Space Missions  

    Imagine you're on your way to Mars, and you lose a crucial tool during a spacewalk. Not to worry, you'll simply re-enter your spacecraft and use some microorganisms to convert your urine and exhaled carbon dioxide (CO2) into chemicals to make a new one. That's one of the ultimate goals of scientists who are developing ways to make long space trips feasible. Astronauts can't take a lot of spare parts into space because every extra ounce adds to the cost of fuel needed to esca

2017-08-22 06:41:29
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91 

Solar Corona Preview of Today's Total Eclipse --"What the Sun's Aura of Plasma Will Look Like as It Extends Millions of Kilometers Into Outer Space"  

Today, August 21, 2017, a total eclipse of the Sun will be visible across the U.S. tracing out a 70-mile-wide band across 14 states. Beyond their rarity and otherworldly nature, solar eclipses help astronomers better understand the Sun - its structure, inner workings and the space weather it generates. They also provide an opportunity for researchers who study solar science to forecast in advance how the Sun will look during the eclipse - proving their predictive chops, so to speak. A team

2017-08-21 06:12:05
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19 

Last Week's Top 5 Space & Science Headlines  

Astrophysicists Predict Earth-Like Alien World in Star System Only 16 Light Years Away NASA's Mars 2020 Mission Ups the Ante --"Techniques and Landing Sites Modeled After Searches for Ancient Biosignatures of Life on Earth" Future Exoplanet Discoveries May Be Tidally Locked, Facing Their Host Star --"More Common Than We Thought" Gigantic Bubbles at Center of Milky Way Reaching Out 50,000 Light Years Discovered to be Source of Mysterious Cosmic Rays "A Greater Survival Threat Than A

2017-08-21 03:00:00
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70 

"A Greater Survival Threat Than Asteroids" --NASA Proposes a Solution for Earth's 20 Supervolcanoes That Erupt Once Every 100,000 Years  

      There are around 20 known supervolcanoes on Earth, with major eruptions occurring on average once every 100,000 years, according to the BBC resulting in mass starvation, with a prolonged volcanic winter potentially prohibiting civilization from having enough food for the current population. In 2012, adds the BBC, the United Nations estimated that food reserves worldwide would last 74 days. NASA Jet Propulsion Laboratory scientist Brian Cox said that "I came to the co

2017-08-20 08:40:01
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54 

"Journey to the Center of the Milky Way" --NASA's Voyager Spacecraft at 40! (Today's 'Galaxy' Stream)  

      "Humans have been explorers forever," says Voyager project scientist, Ed Stone. "This is just the newest human exploration by robotic means. Voyager 1 is now touching the material that fills most of the Universe." In the late summer of 1977, NASA launched the twin Voyager spacecraft. These remote ambassadors still beam messages back to Earth 40 years later, with data from their deep space travels. Here's the amazing transcript and video from the initial laun...

2017-08-20 07:28:38
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62 

"Totality!" --WATCH NASA Videos to Prep for Monday's Live-Streamed Total Eclipse  

    ". . . and the Sun has perished out of heaven, and an evil mist hovers over all." Said to refer to a total solar eclipse of 16 April 1178 BC. From, Homer, The Odyssey (8th century BC). The August 21st total eclipse will cross the entire United States, coast-to-coast, for the first time since 1918. Weather permitting, the entire continent will have the opportunity to view an eclipse as the moon passes in front of the sun, casting a shadow on Earth's surface. Live video str...

2017-08-19 07:43:57
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147 

Gigantic Bubbles at Center of Milky Way Reaching Out 50,000 Light Years Discovered to be Source of Mysterious Cosmic Rays  

    A team of scientists from Russia and China has developed a model which explains the nature of high-energy cosmic rays (CRs) in our Galaxy. These CRs have energies exceeding those produced by supernova explosions by one or two orders of magnitude. The model focuses mainly on the recent discovery of giant structures called Fermi bubbles. Hints of the Fermi bubbles' edges shown above were first observed in X-rays (blue) by ROSAT, which operated in the 1990s. The gamma rays mapp

2017-08-18 07:22:50
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63 

NASA Monitoring 3-Mile-Wide Asteroid --"Largest Potentially Hazardous NEO Ever Tracked This Close to Earth"  

On September 1, an asteroid almost three miles wide named after Florence Nightingale will safely fly by Earth at a distance of 4.4 million miles. The last time it came closer to Earth was 1890 and the next time it will come anywhere near us will be 2500. Florence, is one of the biggest near-Earth objects (NEOs) currently being tracked by NASA and will be the largest to pass us at a relatively close distance since the space agency began monitoring them 20 years ago. It is classified as a

2017-08-18 06:23:27
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5 

Astrophysicists Predict Earth-Like Alien World in Star System Only 16 Light Years Away  

    Astrophysicists predict that an Earth-like planet may be lurking in a star system just 16 light years away. The team investigated the star system Gliese 832 for additional exoplanets residing between the two currently known alien worlds in this system. Their computations revealed that an additional Earth-like planet with a dynamically stable configuration may be residing at a distance ranging from 0.25 to 2.0 astronomical unit (AU) from the star. "According to our calculatio

2017-08-17 08:40:54
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11 

NASA's Mars 2020 Mission Ups the Ante --"Techniques and Landing Sites Modeled After Searches for Ancient Biosignatures of Life on Earth"  

    Will NASA discover signs of ancient life at one of the largest and oldest impact craters in the Solar System? "Mars 2020 represents a crucial first step towards a possible Mars sample return," said Ken Williford, Director of the Jet Propulsion Laboratory's Astrobiogeochemistry Laboratory."Our objective is to collect a diverse set of samples from our landing site with the best potential to preserve records of the evolution of Mars - including the presence of life if it was the

2017-08-17 07:46:56
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5 

A New Look At the 1977 WOW! Signal 6EQUJ5 --A Message from the 'Cosmic Watering Hole'? (VIEW Today's 'Galaxy' Stream)  

"If those civilizations are out there - and we don't know that they are - those that inhabit star systems that lie close to the plane of the Earth's orbit around the sun will be the most motivated to send communications signals toward Earth, because those civilizations will surely have detected our annual transit across the face of the sun, telling them that Earth lies in a habitable zone, where liquid water is stable," says Richard Conn Henry, of Johns Hopkins University. "Through s...

2017-08-16 08:19:01
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51 




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