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 ...

Decades ago, astronomers estimated that “ordinary” matter (basically everything that isn’t dark matter or dark energy) makes ...

Harvard & Smithsonian (CfA) and California Institute of Technology, have made a major breakthrough by locating the "missing" ...

A new landmark study has pinpointed the location of the universe's "missing" matter, and detected the most distant fast radio ...

Is there a center to the universe? Modern physics says no. Explore why the cosmos expands everywhere at once and why the Big ...

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

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 ...

"Fast radio bursts shine through the fog of the intergalactic medium, and by precisely measuring how the light slows down, we ...

Using fast radio bursts, astronomers have finally located the universe’s missing ordinary matter across billions of ...

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

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.” ...