Space Exploration

Surrounded by candy canes and a makeshift snowman made out of stowage bags, the astronauts on the International Space Station gathered together to wish a Merry Christmas to everyone back on Earth.

For better or for worse, a small part of the Apollo 11 spacecraft will now be Jon Mesick's to have and to hold for all the days of his life. The tape is the centerpiece of Mesick's wedding band.

On Dec. 25, 2004, NASA's Cassini spacecraft dropped a lander named Huygens at Titan, Saturn's largest moon.

NASA administrators play a vital role in deciding what NASA does and how it does it, and they also help build political support for space exploration.

United Launch Alliance (ULA) says its new, powerful Vulcan Centaur upper stage rocket could play a key role in defending satellites from potential threats in space.

NASA has pushed its first two crewed Artemis moon missions back to 2026 and 2027, and the move could have big ramifications.

SpaceX launched 21 Starlink internet satellites from Florida's Space Coast early Monday morning (Dec. 23) and landed the returning rocket on a ship at sea.

Explorers, astronauts and filmmakers described life in space and on Earth in an epic livestream from the Drake Passage.

NASA's Apollo spacecraft had briefcase-size computers that for their day would normally have filled two rooms. Apollo Instruments has been able to shrink the Apollo Guidance Computer even more.