Using data from space telescopes and other instruments, astronomers, cosmologists, and astrophysicists are able to deduce and ...

The Hubble tension, a long-standing puzzle in cosmology, arises from conflicting measurements of the universe’s expansion ...

Mysterious dark matter makes up 85 percent of matter in the universe, and of the remaining 15 percent, scientists couldn’t ...

Where Is everybody? The answer to Fermi's famous paradox may be lurking closer than we expected... and it could involve ...

The Milky Way, our home galaxy, is part of a different supercluster called Laniakea, which, at 500 million light-years wide, ...

A never-before-seen image of the cosmic microwave background, combining data from the Atacama Cosmology Telescope (ACT) and ...

A team of scientists has proposed a revolutionary idea to explain one of the greatest contradictions in our understanding of ...

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

For decades, scientists have known that ordinary matter — everything made of atoms — accounts for just 15% of the universe’s ...

Astronomers tallying up all the normal matter—stars, galaxies and gas—in the universe today have come up embarrassingly short ...

After five years of staring unblinking at the sky, the Atacama Cosmology Telescope (ACT) has compiled the most detailed map we've ever seen of the cosmic microwave background – the faint light that ...