The properties of faint dwarf galaxies around the Milky Way can reveal a lot about the conditions of the early universe, the ...

New simulations show that early ultraviolet light controlled whether ultra-faint dwarf galaxies could form stars.

In 2016, researchers discovered an enormous supercluster of galaxies in the constellation of Vela that had been hiding in ...

The conclusion of DESI's first survey marks an important milestone for cosmology, which finds itself in a bind for the best ...

Understanding the universe as a whole requires simulations on cosmic scales. An international team of astrophysicists, with a ...

By studying galaxy clusters separated by hundreds of millions of light-years, Penn physicist Patricio Gallardo and ...

Cosmic viewer The Atacama Cosmology Telescope in Chile was used by the team to observe gravitational interactions between ...

Ultra-faint dwarf galaxies—tiny satellite galaxies orbiting the Milky Way—have long been seen as cosmic fossils. Now, a new ...

A spectacular cosmic event nicknamed “SN Winny” could help solve one of astronomy’s biggest mysteries: how fast the universe is expanding. This rare superluminous supernova, located 10 billion ...

A study of 300,000 galaxies confirms that gravity follows Newton's law and deepens the mystery of dark matter.

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Findings from a new study into the cosmic "afterglow" may rewrite the ...