Geneticists have a better understanding of how prehistoric pairings unfolded, with new research suggesting they were mostly between male Neanderthals and female humans.

NASA’s Mike Fincke has publicly identified himself as the astronaut who had a concerning “medical event” that led to an early exit from the International Space Station.

Saturn’s largest moon, Titan, might have formed after a collision with a lost moon, according to new research.

NASA’s efforts to get the Artemis II mission off the ground have stalled once again, as engineers navigate a new issue with the rocket set to launch four astronauts around the moon.

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

The Apollo missions changed how scientists understand the moon. Returning with Artemis could help solve some of the biggest lunar mysteries.

Archaeologists in Spain have uncovered an elephant bone from 2,200 years ago, and they believe it belonged to an animal that served as a “war machine” in an army sent to invade the Roman Republic.

The test flight of Boeing’s Starliner capsule — which turned into a monthslong stay in space for two astronauts — was a debacle in the same league as shuttle disasters, NASA said.

A new study has analyzed mummified remains of cheetahs in Saudi Arabia caves. The results could help reintroduce cheetahs to the Arabian Peninsula, researchers say.