The Dark Energy Spectroscopic Instrument spent five years observing the sky from Arizona. Now, researchers have a trove of ...

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 ...

Physicists have long assumed that the universe is uniform at very large scales, but evidence is emerging this is wrong and ...

The Dark Energy Spectroscopic Instrument (DESI) has completed its originally planned five-year mission and mapped more than ...

The largest 3D map of the universe, created based on data from the Dark Energy Spectroscopic Instrument, shows 47 million galaxies in stunning detail.

Explore 25 universe mysteries scientists are still scratching their heads over, from dark matter to the Big Bang's secrets.

Here’s what you’ll learn when you read this story: However, nailing down the universe’s exact expansion rate (known as the ...

Now physicists from the University of Washington are taking a big swing at answering that question. All matter exerts gravitational force. The more mass the object has, the greater the force. Yet, a ...

Explore bizarre mysteries science still can't explain, from dark matter to the Fermi Paradox. Dive into cosmic conundrums and ...

The universe has a hidden structure, and a University of Virginia professor is mapping it in 3D, using 46 million galaxies ...

They trudge in darkness nearly a mile, across a plateau of snow and ice, until they discern, against the backdrop of more stars than any hands-in-pocket backyard observer has ever seen, the silhouette ...