The local universe may be expanding more slowly than previously thought, a discovery that could relieve a pesky discrepancy ...

Add Yahoo as a preferred source to see more of our stories on Google. A developing galaxy cluster dating to about 1 billion years after the Big Bang is shown in this handout image released on January ...

Cosmic voids may seem like the emptiest places in the universe, stripped of matter, radiation, and even dark matter. But they’re far from nothing. Even in these vast empty regions, the fundamental ...

A NASA space telescope on a mission to map millions of galaxies has turned on its detectors for the first time, capturing images of tens of thousands of stars and galaxies. The SPHEREx, which is short ...

It's a new window into the first star explosions.

Astronomers have peered back in time to find what looks like a population of 'hidden' galaxies that could hold the key to unlocking some of the universe's secrets. If their existence is confirmed it ...

Astronomers have uncovered a hidden cosmic web of galaxies and gas by mapping hydrogen light from the early universe.

The jellyfish galaxy in question. The dashed circles mark the four extra-planar sources that are identified in the galaxy’s tail. Credit: The Astrophysical Journal. Astronomers ...

"One day soon we may be able to see these 'missing' galaxies, which would be hugely exciting and could tell us more about how the universe came to be as we see it today." When you purchase through ...

Light released by a distant star does not simply wink out after crossing some threshold of space. In a vacuum, photons keep moving indefinitely, and astronomers routinely detect light that has ...

Astronomers peering back deep in time into the distant universe think they may have discovered a population of previous hidden galaxies that could shake up astrophysics. The research, based on data ...