Scientists predict up to 100 invisible galaxies may orbit the Milky Way, hiding just beyond our current detection limits.

New supercomputer simulations suggest the Milky Way could be surrounded by dozens more faint, undetected satellite ...

Imagine a star powered not by nuclear fusion, but by one of the universe’s greatest mysteries—dark matter. Scientists have ...

The Milky Way could have many more satellite galaxies than scientists have previously been able to predict or observe, ...

According to a provocative new study, that might just be our cosmic address. This idea is meant to solve one of the biggest ...

Dark matter is one of nature's most confounding mysteries. It keeps particle physicists up at night and cosmologists glued to ...

Are we living in a cosmic void? New theory suggests our galaxy sits in a giant hole warping the universe's expansion.

For one, scientists observe a "cosmic fossil" called the cosmic microwave background (CMB). The first light that was free to ...

New simulations suggest that dozens of ultra-faint “ghost” galaxies may be orbiting the Milky Way, hidden from current ...

The Big Bang theory is the widely accepted explanation of how the universe began, but one question has persisted: What happened before the Big Bang? According to Nobel Prize-winning physicist Roger ...

Researchers are using machine learning, symbolic regression, and high-performance computing to explore and classify string ...

Images of the cosmos, such as the James Webb Space Telescope’s deep space snapshot, make space look chock-full of stuff. In the grand scheme of things, it is, but all those stars, galaxies, planets, ...