Astrophysicists have discovered the largest known merger of two black holes to form a larger single hole about 225 times the ...

Here's why the force of gravity pulls us down rather than up. The answer involves Einstein and the bendy realm of space-time.

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

It was in 1980 that John Anderson first wondered if something funny was going on with gravity. The Jet Propulsion Laboratory physicist was looking over data from two Pioneer spacecraft that had ...

And sure enough, the team measured a weak gravitational pull of just 30 attonewtons (aN) acting on this particle at points that corresponded to when the larger weight was closest to it.

Perhaps surprisingly, gravity is the weakest of the four fundamental forces and the hardest to measure here on Earth. Now, physicists in Austria have made the smallest measurement of gravity so ...