NASA and partners are building the first quantum gravity sensor for space, a breakthrough instrument that uses ultra-cold ...

Astronomers since then indeed have discovered worlds, called circumbinary planets, orbiting two stars. But for sheer ...

Astronomers have confirmed the existence of four rocky planets orbiting Barnard’s Star, our nearest solitary stellar neighbor ...

The image of Luke Skywalker gazing wistfully across the desert of Tatooine while a pair of “suns” set on the horizon is among ...

Scientists have discovered the exact point where gravity is weakest on Earth, leaving people feeling "lighter". After ...

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

Dubbed "Planet Nine," this hypothetical celestial body is believed to influence the orbits of distant, small objects beyond ...

Our moon bears a lot of responsibility: Its gravitational pull on the planet influences ocean tides; it can tell us a lot ...

Every now and then, space surprises us– and this time, the buzz is all about four small rocky planets found around one of our ...