NASA's Advanced Composite Solar Sail System successfully spread its "wings" in space.
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NASA's Advanced Composite Solar Sail System successfully spread its "wings" in space.
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SpaceX can resume flying its workhorse Falcon 9 rocket, the U.S. Federal Aviation Administration announced this evening (Aug. 30), two days after a landing failure grounded the vehicle.
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A SpaceX rocket carrying the 7,001st Starlink internet satellite launched into orbit from Florida today (Sept. 5), then aced its landing at sea.
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Meet Phaethon, a "rock comet" that blurs the definitions between asteroid and comet, and learn why it will be worth paying attention to this fascinating object in the coming years.
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The reddish structures of our neighboring galaxy glow brightly in a new image from the Hubble Space Telescope.
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Although officially known as the celestial archer, the zodiacal constellation of Sagittarius is far better recognized as a teapot. Here's how to see it this season.
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A new video from an astronaut's vantage point in space captures a bright green burst over Earth as a meteor exploded in the night sky.
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To commemorate the 25th anniversary of NASA's Chandra X-ray Observatory, scientists have rereleased new "sonified" images of nearby objects, including the supernova remnant Cassiopeia A.
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Energy-packed plasma waves pump enough energy into streams of solar wind to propel them to their unexpectedly high speeds, observations by two sun-studying spacecraft suggest.
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Starliner's astronauts will spend at least 8 months in space, longer than a typical ISS crew. But numerous other astronauts have safely spent a year on the ISS, or even longer.
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Chinese astronauts aboard the Tiangong space station are studying microbes, to help determine if some of Earth's early lifeforms can handle a simulated cosmic environment.
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The Hubble Space Telescope has imaged one of Andromeda's dwarf galaxies. It's named Pegasus.
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The highly anticipated "Warhammer 40K: Space Marine 2" came out today (Sept. 9). Get hyped for the new game by checking out this brutal new launch trailer.
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Organisms on Earth living deep underground or at the bottom of the sea may give us an idea what alien life without a circadian rhythm could be like.
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"It's now a part of mainstream astrophysics."
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