
NASA astronaut Mike Fincke retires after 30 years at the space agency
With four launches and nine spacewalks under his belt, Fincke leaves NASA as the fourth-most-flown astronaut at the space agency.
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By Chelsea Gohd Published
This photo, snapped just as the Aug. 12 solar eclipse was about to enter its totality phase, really captures the drama of the moment.

By Daisy Dobrijevic Last updated
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By Anthony Wood Published
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The WorldView-3 Earth-observing satellite.

By Charles Q. Choi Published
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By Hanneke Weitering Published
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By Josh Dinner Published
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By Mike Wall Published
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By Chelsea Gohd Published
A shot so spectacular it will leave other astrophotographers green with envy.

By Samantha Mathewson Published
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By Chelsea Gohd Published
This photo, snapped just as the Aug. 12 solar eclipse was about to enter its totality phase, really captures the drama of the moment.

By Richard Edwards Published
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NASA astronaut Sally Ride became the first American woman in space aboard the space shuttle Challenger.

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By Keith Cooper Published
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By Sharmila Kuthunur Published
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By Keith Cooper Published
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By Jase Parnell-Brookes Last updated
Buying Guide Looking for the best stargazing apps to learn about the night sky? We've rounded up our favorites right here.
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