Gravity used to be the most down-to-earth of ideas, the thing that kept apples falling and planets in line. Now a growing ...

Physicists have been exploring the theoretical possibility of spaceships driven by compressing the four-dimensional spacetime for decades. Although this so-called 'warp drive' originates from the ...

As Earthlings, most of us don’t spend a lot of extra time thinking about the gravity on our home planet. Instead, we go about our days only occasionally dropping things or tripping over furniture but ...

In a new Physical Review Letters study, researchers have successfully followed a gravitational wave's complete journey from the infinite past to the infinite future as it encounters a black hole.

A new simulation by NASA astronomers provides a unique perspective of the cosmos through the lens of gravitational waves, which are elusive ripples in the fabric of space-time generated by orbiting ...

Brown dwarfs have fascinated astronomers for decades: too massive to be planets but not massive enough to shine like stars, their origins remain debated. Do they form like stars through gravitational ...

Warp drives are staples of science fiction, and in principle could propel spaceships faster than the speed of light. Unfortunately, there are many problems with constructing them in practice, such as ...