"It's an elegant answer, really, because we thought it was a tiny galaxy full of many separate cold stars, but it's actually, ...

For scientists, that has long posed a problem: According to physicists’ best current theories, matter and its counterpart, ...

NASA's Nancy Grace Roman Space Telescope will help scientists better understand our Milky Way galaxy's less sparkly ...

Later, I did some research and realized these weren't smudges at all; they were newly formed stars! Honestly, my eyes widened ...

A newly discovered distant object that astronomers have dubbed “The Cliff” could solve a riddle posed by some of the first ...

Long before galaxies sparkled in the sky or stars took shape, invisible forces stirred in the early Universe. One of those ...

The discovery that black hole growth may not be limited to galactic centers could shed light on the role supermassive black ...

A swarm of galaxies called the Bullet Cluster is the biggest, best natural laboratory for studying dark matter that ...

Science is a story of coming up with theories then doing our best to disprove them. That is especially true for theories on a ...

Astronomers using the James Webb Space Telescope have uncovered mysterious “little red dots” that may not be galaxies at all, but a whole new type of object: black hole stars. These fiery spheres, ...

Tiny, glowing red dots seen by NASA’s James Webb Space Telescope (JWST) could be one of the biggest surprises in modern ...