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 ...

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

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

A study led by the Harvard & Smithsonian Center for Astrophysics reveals that more than 75% of the baryonic matter in the ...

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

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

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 ...

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.” ...

For thousands of years we assumed the earth was the center of the universe. When Galileo advanced the proposition that the ...