Like stretch marks left on skin that expanded too quickly or cracks embedded in freezing ice, cosmic strings are artifacts of ...

This puzzle is known as the problem of time, and it remains one of the most persistent obstacles to a unified theory of ...

The six-year Dark Energy Survey has released its full results, showing that two leading models of cosmology are equally valid ...

A decades-old idea is quietly regaining attention in theoretical physics: ancient structures embedded in the universe’s ...

The new research suggests an alternative origin. Dark matter could have instead been born extremely hot, opening up ...

Long before galaxies sparkled in the sky or stars took shape, invisible forces stirred in the early Universe. One of those forces—magnetism—emerged in ways scientists are only now beginning to ...

The "Cosmic Grapes" galaxy formed just 900 million years after the Big Bang, revealing a never-before-seen structure.

Dark energy remains one of the most stubborn puzzles in modern science. Despite decades of observation and increasingly powerful telescopes, its true nature is still unknown. Now, scientists involved ...

"This is a unique opportunity to learn how the universe's first light emerged from the darkness." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

Physicists have unveiled a new way to simulate a mysterious form of dark matter that can collide with itself but not with ...

The Dark Energy Survey Collaboration collected information on hundreds of millions of galaxies across the universe using the ...