A million-kilometer effective light path could reveal tiny frequency shifts, but the experiment would not alone prove ...

Potential energy is the energy stored of position by an object. It is a type of energy that can be converted to other forms and related to some attractive or pushing forces. Gravitational potential ...

The gravitational version of the Aharonov-Bohm effect, where particles are affected by the gravitational potential in the absence of a force, could be demonstrated in a lab-scale experiment using ...

A physicist has proposed a bold experiment that could allow gravitational waves to be manipulated using laser light. By transferring minute amounts of energy between light and gravity, the interaction ...

When two black holes merge or two neutron stars collide, gravitational waves can be generated. They spread at the speed of light and cause tiny distortions in space-time. Albert Einstein predicted ...

A supermassive black hole with a case of cosmic indigestion has been burping out the remains of a shredded star for four years—and it's still going strong, new research led by a University of Oregon ...