He described the sight from 260 miles up as "green vaporous turbulence." The post Astronaut shares stunning video of green ...

An astronaut has captured mind-blowing green aurora over Earth. NASA spaceman Don Pettit captured the eerie spectacle from ...

NASA has discovered a new world, named Gliese 12 b. It is roughly the size of Earth, lies in the habitable zone, and orbits every 12.8 days.

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