Astronomers use the term dark energy to refer to energy in the universe that is unaccounted for by ordinary matter but ...

Neutrino particles have extremely small masses, yet there are so many of them that they carve out the large-scale structure ...

"These results from the Dark Energy Survey shine new light on our understanding of the universe and its expansion." ...

Add Yahoo as a preferred source to see more of our stories on Google. The Mayall 4-meter Telescope at the Kitt Peak National Observatory houses the DESI instrument ...

A new high-resolution map of distant galaxies may help scientists understand the mysterious dark matter holding the universe ...

Last year, we reported on an exciting hint of new physics in the first data analysis results from the Dark Energy Spectroscopic Instrument (DESI)—namely that the dark energy, rather than being ...

Gravity pulls us to earth, a lesson you learn viscerally the first time you fall. Isaac Newton described gravity as a universal attractive force, one that holds the Moon in orbit around the Earth, the ...

For more than two decades, the standard model of cosmology has stood as a reliable guide to the universe. Known as Lambda Cold Dark Matter, or ΛCDM, it weaves together dark energy, dark matter, and ...

For a quarter century, cosmology has leaned on one framework to explain how the universe expands. Known as the ΛCDM model, it assumes about 70 percent of the cosmos is filled with an unseen force ...

“As a result, for the past four decades, most researchers have believed that dark matter must be cold when it is born in the primordial universe. Our recent results show that this is not the case; in ...

The U.S. National Science Foundation Nicholas U. Mayall 4-meter Telescope at Kitt Peak National Observatory (KPNO), a Program of NSF NOIRLab, beneath streaking star ...