Asteroid 2024 YR4 will not hit Earth, but it has forced planetary defense experts to confront a different kind of worst case: ...

NASA's next lunar mission is just around the corner, and three companies are competing to provide the rover that the ...

From its first detection using an instrument designed in part by teams based in the Bay, to follow-up orbit analysis ...

NASA announced plans to build a nuclear reactor on the moon on Tuesday, in an attempt to stay ahead of China and Russia in a new space race. The goal is to have the reactor built before 2030, a ...

The asteroid, known as 2022 RD2, belongs to a rare class of space rocks called Arjunas. These objects travel around the sun ...