15 Nov 2018, 19:00 UTC The most luminousLuminousIn astronomy, luminosity is an actual unit. It's the amount of energy given off by a star or galaxy, or any other object -- over a specific period of time. "Brightness," in astronomy, is how apparently bright an object appears to an observer. Brightness goes down with distance. Luminosity does not. galaxy in the universe has been caught in the act of stripping away nearly half the mass from at least three of its smaller neighbors, according to a new study published in the journal Science. The light from this galaxy, known as W2246-0526, took 12.4 billion years to reach us, so we are seeing it as it was when our universe was only about a tenth of its present age.New observations with the Atacama Large Millimeter/submillimeter Array (ALMA)Atacama Large Millimeter/submillimeter Array (ALMA)Funded by the U.S. National Science Foundation and its international partners (NRAO/ESO/NAOJ), ALMA is among the most complex and powerful astronomical observatories on Earth or in space. The telescope is an array of 66 high-precision dish antennas in northern Chile. See more here reveal distinct streamers of material being pulled from three smaller galaxies and flowing into the more massive galaxy, which was discovered in 2015 ... Next Previous
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31 Oct 2018, 09:00 UTC ESO’s exquisitely sensitive GRAVITY instrument has added further evidence to the long-standing assumption that a supermassive black hole lurks in the centre of the Milky Way. New observations show clumps of gas swirling around at about 30% of the speed of light on a circular orbit just outside its event horizon — the first time material has been observed orbiting close to the point of no return, and the most detailed observations yet of material orbiting this close to a black hole. Next Previous
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NASA Breaking News 19 Nov 2018, 16:06 UTC NASA has chosen Jezero Crater as the landing site for its upcoming Mars 2020 rover mission after a five year search, during which every available detail of more than 60 candidate locations on the Red Planet was scrutinized and debated by the mission team and the planetary science community.
NASA's Jet Propulsion Laboratory News and Features 16 Nov 2018, 20:11 UTC What's the sound of a touchdown on Mars? If you're at NASA's Jet Propulsion Laboratory, it sounds like winning the Super Bowl: cheers, laughter and lots of hollering. But in the minutes before that, NASA's InSight team will be monitoring the Mars lander's radio signals using a variety of spacecraft - and even radio telescopes here on Earth - to suss out what's happening 91 million miles (146 million km) away.
NASA: Kepler News and Features 16 Nov 2018, 16:59 UTC On Thursday evening, NASA’s Kepler space telescope received its final set of commands to disconnect communications with Earth. The “goodnight” commands finalize the spacecraft’s transition into retirement, which began on Oct. 30 with NASA’s announcement that Kepler had run out of fuel and could no longer conduct science.
HubbleSite NewsCenter -- Latest News Releases 16 Nov 2018, 15:00 UTC November 16 marks the premiere of a unique film and musical experience inspired by the Hubble Space Telescope’s famous Deep Field image. It represents a first-of-its-kind collaboration between Grammy award-winning American composer and conductor Eric Whitacre, producers Music Productions, multi award-winning artists 59 Productions, and the Space Telescope Science Institute (STScI). Deep Field: The Impossible Magnitude of our Universe features a variety of Hubble’s stunning imagery and includes 11 computer-generated visualizations of far-flung galaxies, nebulas, and star clusters developed by STScI. The film is available on YouTube and will be shared with the world through screenings and live performances around the globe.
NASA's Goddard Space Flight Center 16 Nov 2018, 14:01 UTC At first glance, a bright blue crescent immediately jumps out of this NASA/ESA Hubble Space Telescope image. Is it a bird? A plane? Evidence of extraterrestrial life? No — it’s a galaxy. The shape of this galaxy admittedly appears to be somewhat bizarre, so confusion would be forgiven. This is due to a cosmic phenomenon called gravitational lensing. In this image, the gravitational influence of a massive galaxy cluster called SDSS J1110+6459 is causing the surrounding space-time to bend and warp, affecting the passage of any nearby light. A few more signs of lensing (streaks, blobs, curved lines, distorted shapes) can be seen dotted around the image. Just below the right side of the prominent, blue arc appears a rare and interesting type of galaxy called a jellyfish galaxy, which seems to be dripping bright blue material. These are galaxies that lose gas via a process called galactic ram-pressure stripping, where the drag caused by the galaxy moving through space causes gas to be stripped away.
NASA's Jet Propulsion Laboratory News and Features 15 Nov 2018, 19:21 UTC The most luminous galaxy ever discovered is cannibalizing not one, not two, but at least three of its smaller neighbors, according to a new study published today (Nov. 15) in the journal Science and coauthored by scientists from NASA's Jet Propulsion Laboratory in Pasadena, California. The material that the galaxy is stealing from its neighbors is likely contributing to its uber-brightness, the study shows.
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Parabolic Arc 19 Nov 2018, 11:36 UTC In mid-December, twin discs will begin glowing blue on the underside of a minibus-sized spacecraft in deep space. At that moment Europe and Japan’s BepiColombo mission will have just come a crucial step closer to Mercury.This week sees the in-flight commissioning and test firing of the four thrusters – with one or two firing at a time – of the Solar Electric Propulsion System that BepiColombo relies on to reach the innermost planet.
All About Space 19 Nov 2018, 09:59 UTC Silica, the most common mineral found on Earth, is formed at the end of massive star’s life.
Universe Today 18 Nov 2018, 22:58 UTC Fusion power has been the fevered dream of scientists, environmentalists and futurists for almost a century. For the past few decades, scientists have been attempting to find a way to create sustainable fusion reactions that would provide human beings with clean, abundant energy, which would finally break our dependence on fossil fuels and other unclean methods.
Parabolic Arc 18 Nov 2018, 21:58 UTC Ground controllers have beamed the final commands to NASA’s Kepler telescope, turning off the spacecraft’s transmitters and disabling the craft’s automatic recovery software after the planet-hunting observatory ran out of fuel last month.