If not in visible stars and galaxies, the most likely hiding place for the matter is in the dark space between galaxies.

Scientists hunted dark matter and solar neutrinos with one of the largest experiments yet. While the neutrinos likely ...

Half of the universe's ordinary matter was missing — until now. Astronomers have used mysterious but powerful explosions of energy called fast radio bursts (FRBs) to detect the universe's missing ...

Ever lost your phone and your spouse said, “Have you looked in the couch?” and of course you looked in the couch, it was the first place you looked, and it wasn’t there, and the spouse looks between ...

The universe's matter-antimatter asymmetry, where matter significantly outweighs antimatter despite their theoretically equal creation at the Big Bang, remains a major unsolved problem in physics.

Everything humanity has ever touched, measured, or imagined as “normal” matter is a tiny sliver of reality. Less than 5 ...

Two fresh ideas are giving scientists new ways to think about how the universe’s hidden mass came to be. Together, they paint a richer picture of dark matter’s origins and how we might still discover ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...

Everything we see around us, from the ground beneath our feet to the most remote galaxies, is made of matter. For scientists, that has long posed a problem: According to physicists’ best current ...