Astronomers used James Webb Space Telescope data to determine the density of the universe's most mysterious "stuff." ...

Astronomers have produced the most detailed map yet of dark matter, revealing the invisible framework that shaped the Universe long before stars and galaxies formed. Using powerful new observations ...

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

Add Yahoo as a preferred source to see more of our stories on Google. A team of astronomers have put together the largest, most detailed map of the universe ever created – and you can explore it now.

Six years of Dark Energy Survey observations combine four cosmological probes to refine measurements of cosmic expansion, dark energy behavior, and matter clustering across billions of years.