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Celebrate the Autumn Equinox 2017 with Jupiter, Moon ConjunctionWhile residents of the northern half of the Earth prepare for shorter days and colder weather — the first day of fall is Friday (Sept. 22) — there is a sky spectacle to enjoy.
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Solar Power Dipped Along Great American Solar Eclipse Path (Video)Solar power took a dip in the United States when the total eclipse swept across the country Monday (Aug. 21), as a new video shows.
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Kids Can Prep for Total Solar Eclipse with 'Space Racers' WebsiteThe coast-to-coast total solar eclipse on Aug. 21 will be memorable for children and adults alike, and a new website will help kids get interested in the big event and view it safely.
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Mars Crater or Collapse? A Photo Mystery in Martian 'Swiss Cheese'Scientists aren't sure if a big dimple on Mars came from something smacking into the Red Planet's surface or if it was simply caused by a collapse.
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Hubble Telescope Spies Strange 'Born-Again' Star After Epic BurnA star's mysterious evolution recently came to light using the Hubble Space Telescope, which spotted the star cooling after a rapid temperature increase in the past.
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NASA Is Making 'Star Trek' Tech a RealityWhile engineers are still struggling with seemingly impossible physics for warp drives and transporters, NASA is using some technology in space that would be at home on the starship Enterprise.
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NASA Makes Contact with Long-Lost Sun ProbeNASA has finally re-established contact with a sun-watching probe that was once thought lost in space after it abruptly went silent in 2014.
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Would Aliens Really Kill Us, 'Independence Day'-Style? -
Move Over, R2-D2! NASA Already Has Plenty of Robots in SpaceRobots are already in space and benefiting humans, NASA says, even though (so far) we don't have trusty R2-D2s by our side bleeping comments and questions.
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What Would an Alien Megastructure Look Like? Sci-Fi Authors Weigh InA star is dimming for reasons that astronomers can't explain. Is it an alien megastructure? What sort of alien megastructures would be possible?
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Potentially Dazzling Perseid Meteor Shower Peaks This WeekThe annual Perseid meteor shower will reach its peak this week on Wednesday (Aug. 12) and Thursday (Aug. 13), giving amateur skywatchers an evening show.
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The Moon's Puzzling Dust Cloud Finally Yields an Answer -
Space Robot Arm Tech Could Help Surgeons Operate on KidsThe technology powering robotic arms in space could be used to perform minor surgeries for children on Earth.
