The Chicxulub "Dinosaur-Killer" Asteroid Impact --"Life Rebounded Quickly Creating New Niches" (VIDEO)

 

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“Life returned to the crater very quickly,” Christopher Lowery, a researcher at the University of Texas-Austin, said during a news conference at the Lunar and Planetary Sciences Conference (LPSC) here in Houston on Tuesday, March 21. Microfossils found in the core sample show that life at the crater reappeared after about 30,000 years, roughly when it reappeared in other locations, according to Lowery. “You see [that resurgence] across the globe,” Lowery added.

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Breathtakingly Beautiful Galaxy With an Enormous Halo of Extreme Star Creation --"Many Times that of the Milky Way"

 

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"This galaxy is famous because it's beautiful and very close to us, and because of what's happening inside it--it's quite extraordinary." The Sculptor Galaxy has an enormous halo of gas, dust and stars, which had not been observed before at frequencies below 300 MHz. The halo originates from galactic "fountains" caused by star formation in the disk and a super-wind coming from the galaxy's core.

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ESO: "Extreme Environments" of Supermassive Black Holes at Heart of Galaxies Trigger Star Formation

 

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Observations using ESO's Very Large Telescope have revealed stars forming within powerful outflows of material blasted out from supermassive black holes at the cores of galaxies. These are the first confirmed observations of stars forming in this kind of extreme environment. The discovery has many consequences for understanding galaxy properties and evolution. The results are published in the journal Nature.

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The Surface of Saturn's Titan is Electrically Charged --"It's a Strange, Electrostatically Sticky World"

 

 

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"Titan's extreme physical environment requires scientists to think differently about what we've learned of Earth's granular dynamics," said Josef Dufek, with the Georgia Institute of Technology. "Landforms are influenced by forces that aren't intuitive to us because those forces aren't so important on Earth. Titan is a strange, electrostatically sticky world."

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Earth-Like Jet-Stream Waves Exist on the Sun --"Acts Like a Vast Magnetized Ocean"

 

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The same kind of large-scale planetary waves that meander through the atmosphere high above Earth's surface may also exist on the Sun, according to a new study led by a scientist at the National Center for Atmospheric Research (NCAR). Just as the large-scale waves that form on Earth, known as Rossby waves, influence local weather patterns, the waves discovered on the Sun may be intimately tied to solar activity, including the formation of sunspots, active regions, and the eruption of solar flares.

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Asteroid Impacts Spawned Colossal 500-Foot-High Tsunamis in Mars' Ancient Oceans

 

 

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"The possibility that a large ocean once occupied the Martian northern plains is one of the most important and controversial hypotheses to have originated from the exploration of Mars," the researchers wrote in the study. "We mapped lobate deposits, which appear and are potential tsunami deposits associated with the existence of a former ocean. We identified the most probable crater sources of the proposed tsunami deposits from a numerical modeling."

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NASA's 'Far-Side-of-the-Moon' Orbiting Telescope --"To Explore Never Before Observed First Stars, Black holes, and Galaxies" (WATCH VIDEO)

 

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"This is a challenging experiment because we're having to look through a foreground — namely, the Milky Way galaxy — that is at least four orders of magnitude brighter than the signal that we're trying to detect," said Jack Burns, DARE's principal investigator for The Dark Ages Radio Explorer (DARE) and the director of the Lunar University Network for Astrophysics Research at University of Colorado Boulder.

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Astronomers Probe Ancient Stars of the Outermost Reaches of the Milky Way --"Discover Massive Object"

 

 
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An international team of astronomers has identified a record breaking brown dwarf (a star too small for nuclear fusion) with the 'purest' composition and the highest mass yet known. The object, known as SDSS J0104+1535, is a member of the so-called halo – the outermost reaches - of our Galaxy, made up of the most ancient stars. The scientists report the discovery in Monthly Notices of the Royal Astronomical Society.

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Juno Spacecraft on Science-Collection Flyby Near Cloud-Tops of "Amazing Giant" Jupiter (VIDEO)

 

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NASA's Juno spacecraft will make its fifth flyby over Jupiter's mysterious cloud tops on Monday, March 27, at 1:52 a.m. PDT (4:52 a.m. EDT, 8:52 UTC). At the time of closest approach (called perijove), Juno will be about 2,700 miles (4,400 kilometers) above the planet's cloud tops, traveling at a speed of about 129,000 miles per hour (57.8 kilometers per second) relative to the gas-giant planet. All of Juno's eight science instruments will be on and collecting data during the flyby.

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Monster Black Hole Ejected By Gravitational Waves from Its Galaxy's Core With Force Equal to 100 Million Supernovas

 

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Astronomers have uncovered a supermassive black hole that has been propelled out of the center of a distant galaxy by what could be the awesome power of gravitational waves. Though there have been several other suspected, similarly booted black holes elsewhere, none has been confirmed so far. Astronomers think this object, detected by NASA's Hubble Space Telescope, is a very strong case. Weighing more than 1 billion suns, the rogue black hole is the most massive black hole ever detected to have been kicked out of its central home.

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