A new idea about cosmic expansion has emerged that might remove the need for dark matter and dark energy altogether.

Astronomers may have found the long-missing half of the universe's regular matter—and it appears to have been right under our ...

JADES-GS-z13-1-LA is a young galaxy shining just 330 million years after the Big Bang, signaling it's part of a process called reionization.

In fact, more than half of normal matter—half of the 15% of the universe's matter that is not dark matter—cannot be accounted ...

Did Copernicus borrow his cosmological theory from an earlier Muslim scientist? New research finds striking resemblance between Copernicus’s heliocentric treatise and a Muslim scientist’s cosmological ...

"Decreasing the capacity to support this sector makes our nation less resilient and more vulnerable to space weather." ...

A team from the University of Bern and the National Center of Competence in Research (NCCR) PlanetS has developed a ...

When I was a kid, I was fascinated by the Powers of 10 video, which came out in the 1970s. Perhaps you remember it, with the narrator taking us both outward toward the fathomless end of the Universe ...

The Spectro-Photometer for the History of the Universe, Epoch of Reionization and Ices Explorer (SPHEREx) telescope took its ...

Scientists claim that humanity, the Earth, and everything else in the universe are really part of a giant holographic ...

Euclid is on a quest to unravel one of the universe’s greatest mysteries: why it's expanding faster and faster. With help ...

At a famous 1950 lunch among physicists, Enrico Fermi wondered, "Where are all the aliens?" How far have we come toward ...