NASA's New Horizons probe survived its New Year's Eve flyby of a "cosmic snowman."
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Jim Lovell relives the first Moon trip.
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On December 5, 2020, join us as we set sail for 15 days aboard our privately chartered cruise ship. Learn more >>
Life near small, violent stars.
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100 pages of fun articles, photos, puzzles, games, activities, and more!
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Just six light-years from Earth, the second-closest star system to our Sun hosts a planet at least three times the mass of our own.
Celebrate the program that landed Americans on the Moon!
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New look at a weird, blue rock.
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What's up in the night sky?
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What's the max gravity our bodies can survive?
Beneath Arizona's vast, clear skies you find some of most exciting astronomical destinations in the world. Learn more >>
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