Physicists plan to test a new theory about the speed of light to explain what Einstein’s theory can’t

Physicists plan to test a new theory about the speed of light to explain what Einstein’s theory can’t

One of the oddest things about our universe is that it has some fundamental constants. These constants—such as the speed of light in a vacuum—have numerical values that don’t change no matter what conditions you test them under. The speed of light in a vacuum had been measured by many physicists in the 19th century…