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 ...

Findings allow scientists to learn more about dark matter’s influence on stars, galaxies, and planets ...

On a clear night far from city lights, the Milky Way stretches overhead as a pale band, yet most of the sky between those ...

An international team of astronomers has achieved a first in probing the early universe, using the James Webb Space Telescope (JWST), detecting a supernova—the explosive death of a massive star—at an ...

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.

The venerable Hubble observatory is going strong despite its decades in space and the advent of next-generation successors ...

It will be a view unlike any other — completely invisible, exceptionally quiet and utterly transformative. When you purchase through links on our site, we may earn an affiliate commission. Here’s how ...

Though sci-fi movies would have us believe that space is incredibly cold — even freezing — space itself isn't exactly cold. In fact, it doesn't actually have a temperature at all. Temperature is a ...