NASA is recruiting volunteers to help track the path of the Artemis II mission that is sending a crew to orbit the Moon.

Researchers have spent 10 years improving the massive detectors they use to catch shockwaves from colliding black holes. Now the science is precise enough to test one of Stephen Hawking's key ideas.

Researchers have spent 10 years improving the massive detectors they use to catch shockwaves from colliding black holes, and now the science is precise enough to test one of Stephen Hawking's key ideas.

Ancient organisms may have left microscopic "biosignatures" on Mars. That's according to NASA scientists, who say a rock sample offers the most concrete proof yet that the red planet once hosted life.

The hottest parts of the sun are its solar flares, and a new study suggests these flares could be more than six times hotter than scientists used to believe.

Solar flares can be many times the size of Earth and can damage things like satellites. A new study suggests that eruptions from the sun can be even hotter than researchers thought.

On Tuesday evening, SpaceX racked up some much-needed successes on the 10th test flight of its massive Starship rocket, breaking a streak of previous failures.

After a series of failures during recent test flights, SpaceX's massive Starship had a smooth ride for Tuesday's blastoff and successfully deployed some fake satellites.

SpaceX wants to put the two-stage rocket's massive booster through its paces. On Sunday, it postponed the launch "to troubleshoot an issue with ground systems."

A black moon is a type of new moon, when the moon is nearly between Earth and the sun.