For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

An unusual looking 33-foot-long object discovered orbiting Earth last year may have come from a surprising place.

Earth's temporary asteroid friend last year was a chunk of its real moon that had been blasted into space thousands of years ...

Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

The sun’s light exerts a tiny force called “solar radiation pressure” on objects in space. Lightweight human-made debris, ...

A near-Earth object was likely ejected into space after an impact thousands of years ago. Now it could contribute new ...

The journey of astronomical telescopes began in the early 17th century when Galileo Galilei crafted his first refracting ...

NASA’s Lunar Atmosphere and Dust Environment Explorer (LADEE), pronounced “Laddie,” was a 2013 robotic mission that was ...

Last week, a full moon lit up the sky but it was another celestial moment, one that’s more rare, that wowed sky-gazers and ...

SpaceX and Blue Origin are years away from putting astronauts on the moon. Four other companies may get there first.

Mars is home to perhaps the greatest mystery of the solar system: the so-called Martian dichotomy, which has baffled ...

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...