Add Yahoo as a preferred source to see more of our stories on Google. Astronomers have discovered 2025 PN7, a small quasi-moon that mirrors Earth’s orbit around the Sun. (CREDIT: ESA) Earth has just acquired a new best friend in space – a small ...

Debris from moonbound spacecraft has left craters on the lunar surface since the U.S. Apollo missions. But the moon is not used to being surrounded by debris. With an expected resurgence in lunar missions in the coming years,

The Artemis II astronauts, after saying goodbye to family and friends, were strapped into their seats aboard the Orion spacecraft by early afternoon, hours before the launch window opened at 6:24 p.m. Eastern time. As the astronauts sat, NASA continued with checks to ensure the safety of the crew before liftoff.