Strange "right-handed" neutrinos may be responsible for all the matter in the universe, according to new research.

In the years following the launch of NASA’s Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

Tucked away in a star-forming region in the Taurus constellation, a pair of circling stars are displaying some unexpected ...

A new proof marks the first progress in decades on important cases of the so-called kissing problem. Getting there meant ...

Yale researchers among those who discovered three “ultra-massive” galaxies, which were formed shortly after the Big Bang and ...