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 ...

When four astronauts begin a historic trip around the moon as soon as February 6, they’ll climb aboard NASA’s 16.5-foot-wide ...

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 ...