That's one-tenth the speed of light, according to a study published in Physical Review Letters. The discovery could reveal brand new laws of physics, one expert said. Scientists have calculated a ...

In 1887, one of the most important experiments in the history of physics took place. American scientists Michelson and Morley ...

Time is not absolute, with gravity and velocity affecting how fast it passes, making clocks at different heights or near ...

Physicists have transferred time and frequency information over a distance of more than 100 km in free space, far exceeding the previous record. The technique, which makes it possible to synchronize ...

Observational clues The transit of Venus allows a geometrical measurement of the Earth–Sun distance, and a measurement of the speed of light. (Courtesy: iStock/milehightraveler) Light is so ...

Mustering up the energy to go for a light jog can sometimes feels insurmountable. But for some, running is just a way of life. Take Jenny Hoffman, who just became the fastest woman to ever run across ...

Cornell University physicist N. David Mermin once described quantum entanglement as “the closest thing we have to magic,” since it means that disturbances in one part of the universe can instantly ...