Scientists have tapped into gravitational lensing and stellar dynamics to confirm the existence of a black hole with 36 ...

It sounds like science fiction: a spacecraft, no heavier than a paperclip, propelled by a laser beam and hurtling through ...

Astronomers propose a giant, hidden planet beyond Neptune to explain odd orbits of distant Kuiper Belt objects.

What is space-time? Depending on how fast you're moving or how close you are do Earth's gravity can change the way time feels ...

An international team of physicists discovered the largest-ever merger of 2 black holes through a phenomenon known as gravitational waves.

A deceptive difference having to do with Earth's and Mars's gravity may be the reason why NASA's rovers get stuck in the ...

The weak gravitational pull on a particle just half the mass of a grain of sand has been measured for the first time. This most precise measurement of its kind is a breakthrough towards the ...