As mankind was planning the first moon landing in the 1960s, an asteroid approached Earth—and still hasn’t left.

The discovery of a new celestial object in the Earth's neighborhood has created a buzz online asking whether the planet now ...

In 2013, NASA discovered a bacteria evading its most stringent disinfections. Scientists just figured out how it does it.

SpaceX’s delays forced NASA to reopen its moon lander contract. Rivals are circling, Artemis is wobbling, and China’s steady ...

Quasi-moons are not real moons and don't actually orbit the Earth, although they sometimes appear to do so for short periods of time, Phil Nicholson, professor of astronomy at Cornell University, told ...