The space agency recently flagged a "city-killer" asteroid that had a small, but troubling, chance of striking Earth. Thankfully, the threat was lowered to near zero after more observation.

Intuitive Machine's second mission to the moon, IM-2, is set to launch Wednesday evening from KSC. Onboard is NASA science. Here's what to know.

NASA's top officials never received an offer from Elon Musk's SpaceX to bring home two US astronauts marooned in space ...