Addressing a controversy first raised around 1910, two physicists have performed experiments with the aid of an engineer that validate anew the special theory of relativity’s limitations on the speed ...

Einstein’s theory of general relativity has been challenged by a team of researchers having conducted a 16 year-long experiment. The theory, which Albert Einstein published in 1915, is the cornerstone ...

Add Yahoo as a preferred source to see more of our stories on Google. A illustration shows a quantum experiment investigating gravity on a tiny scale. Scientists have determined a way to measure ...

For more than a century, Einstein’s relativity has set a hard speed limit for the universe, with light as the ultimate ...

For over 100 years, two theories have shaped our understanding of the universe: quantum mechanics and Einstein’s general relativity. One explains the tiny world of particles; the other describes ...

Scientists across New York State are planning to recreate an experiment from 1919 that proves Einstein’s theory of relativity. The Eddington Experiment allowed scientists to see stars that should be ...

The MICROSCOPE mission tested the weak equivalence principle with free-falling objects in a satellite. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

(Inside Science) — Just six years ago, scientists with the Laser Interferometer Gravitational-Wave Observatory, or LIGO, in Louisiana and Washington measured a unique undulating signal when the ...