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.

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 ...

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 ...

In 1999, however, the newly discovered cosmic acceleration made it clear that some form of anti-gravitational energy (perhaps similar to Einstein's cosmological constant) had to exist.

Energy forms - CCEA Higher tier: Gravitational potential energy. Energy cannot be created or destroyed but it can be transferred, dissipated or stored in different ways.

After decades of planning and political drama, the LIGO detectors first tried to hear gravitational waves in 2002; after eight years of quiet, the detectors were shut down in 2010 and further ...