About a century ago, scientists were struggling to reconcile what seemed like a contradiction in Albert Einstein's theory of ...

For centuries, humans have looked to the stars and wondered about the universe’s vastness, shape, and structure. One question ...

It might seem like a simple question: where is the center of the universe? But the answer is far from simple—and it’s not ...

A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it ...

Astronomer Vera Rubin, now honored on a U.S. quarter, transformed our understanding of the universe by uncovering powerful ...

NASA's Chandra X-ray Observatory has detected powerful black hole jets emanating from a galaxy 11.6 billion light-years away.

An international team of scientists has published a new report that moves toward a better understanding of the behavior of some of the heaviest particles in the universe under extreme conditions, ...

For instance, it’s hard to imagine something as big as the universe not having a center at all, but physics says that’s the reality. First, let’s define what’s meant by “expansion.” ...