Jupiter's fourth-largest moon is a main character in our search for other life-friendly places in our solar system.

CHICAGO -- A NASA spacecraft has intentionally slammed into an asteroid in humanity's first test of planetary defense. The impact occurred at 7:15 p.m. ET greeted by cheers from the mission team in ...

The rocket is about to traverse four miles to the launchpad — at about 1 mph.

The next time Americans will see astronauts on the moon will now be no sooner than 2027, after NASA announced further delays to its Artemis program on Thursday. Artemis 2, a ten-day flight around the ...

Former astronauts raise concerns about Artemis II heat shield ...