As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s not how it works. Hint: space-time is involved.

Astronomers use many methods to determine this number, including gravitational lensing, the universe’s expansion rate, and ...

In a recent study published in the Astrophysical Journalletters, scientists confirmed something both exhilarating and ...

There is a set of very special numbers, known as the fundamental constants of nature, that cannot be explained. Where do they come from? Finding out if they are, in fact, constant is the key to ...

As one of the most influential scholars of the cosmos, Wendy Freedman has made significant contributions to our understanding ...

The universe is expanding, and while that fact is fascinating, it also creates a question that trips people up: if […] ...

Mapping the Universe’s vast structure no longer requires endless supercomputer time. Effort.jl brings cosmic modeling to laptops without sacrificing accuracy.

“There’s a lot of meanings for ‘small,’” says Janet Conrad, a particle physicist at the Massachusetts Institute of Technology ...

There's no shortage of round celestial objects in our universe. Planets, moons and stars all exhibit lovely spherical shapes. But astronomers recently spotted a mysteriously circular orb deep in the ...

The expiration date for the universe is now sooner than experts previously thought, new research suggests. But don't cancel your summer vacation, because it's still trillions of years in the future.