For the first time, scientists have captured the visible green lights of an aurora from the surface of Mars. The spectacle ...

Astronaut Dr. Ryan Stone (Bullock ... trapped on a spacewalk with dwindling air and no way to communicate with Earth. They don’t have time to wait for a miracle to save them, and it may take ...

Find Alien Planet Earth stock video, 4K footage, and other HD footage from iStock. Get higher quality Alien Planet Earth content, for less—All of our 4K video clips are the same price as HD. Plans and ...

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