If I let the gravitational potential energy at an infinite distance be zero Joules, then: Yes, the gravitational potential energy in this way would always be negative. Don't worry.

How 5,000 Pencil-Size Robots May Solve the ... AI designs 50 gravitational wave detectors that could ... Dark energy is the yet unproven force that competes with gravity and causes the ...

Albert Einstein "drops the mic" on physicists a century later 07:01. A century after Albert Einstein predicted their existence, gravitational waves have finally been detected, tiny ripples in the ...

“Primordial gravitational waves from inflation may lead to an appreciable contribution to the energy density of dark radiation in the early Universe, which is a prediction that can be tested in ...

But the supermassive black holes are just one candidate for a source of the massive gravitational hum. "We found the choir, but we don't know who's singing in it — the pop stars are the ...

That energy may have been able to energize electromagnetic fields, causing them to emit light powered by gravity alone. As far as we know, our universe kicked off a long time ago by the Big Bang .

If gravitational waves experience gravity, that means that gravitons don't just interact with the energy-carrying particles of the Standard Model, but there is a graviton-graviton interaction as well.

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.

Gravitational waves, ringing through space According to general relativity, even empty space-time, devoid of stars and galaxies, can have a life of its own. Ripples known as gravitational waves ...

Ripples in space-time called gravitational waves are normally associated with massive objects like black holes, but we could make our own using lasers – and perhaps even use them to communicate ...

Gravitational waves are like super-subtle ripples of gravitational energy moving through (the fabric of) space — a little like waves after you drop a pebble in the water.