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

The speed of light is a fundamental constant, approximately 299,792,458 meters per second. It's the same for all observers and hasn't changed measurably over billions of years. Nothing can travel ...

The speed of light has been one of science’s most trusted markers of stability. For more than a century, the idea that light ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Today’s Google Doodle pays homage to a discovery that has had a profound effect on astronomy and essentially all of our observations of the Universe. The animation depicts Ole Rømer, a Danish ...

Ok, as I understand it we have no way to determine the speed which we are moving at in an absolute sense.<BR><BR>We can say "We are moving 20 miles per hour in the car relative to the road" or "The ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. One of the most fundamental rules of physics, undisputed since Einstein ...

Astronomers have managed to measure the spin of a supermassive black hole, which could help reveal how they grew in the universe. Reading time 4 minutes A team of astronomers has managed to calculate ...

Scientists have demonstrated the fastest distance measurement so far. The researchers demonstrated on-the-fly sampling of a gun bullet profile with micrometer accuracy. The experiment relied on a ...