In a nutshell Astronomers studying the nearby Coma galaxy cluster have found new evidence that the universe is expanding ...

As light goes through an interface, its speed changes. The solution for the behavior of light on one side of the interface or ...

New measurements show that the expansion rate of the universe is faster than can be explained by our current understanding of ...

How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA ...