Central to their findings is a phenomenon called dark energy. This was discovered in 1998, when astronomers found that the ...

Could some observations from a faraway galaxy add up to a refutation of string theory? Researchers who study data from NASA’s Chandra Observatory think so. It’s difficult to prove something’s absence ...

What if the life you did not choose is actually being lived somewhere else? From the Many-Worlds Interpretation of quantum ...

String theory aims to explain all fundamental forces and particles in the universe—essentially, how the world operates on the smallest scales. Though it has not yet been experimentally verified, work ...