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

Using a powerful combination of space-based measurements and Subaru’s advanced imaging, astronomers have discovered two rare companions, one of which enables a key test for NASA’s Roman Space ...

"We believe that the universe on very large scales is made of a network-like distribution of galaxies, gas and dark matter," ...

A surprisingly mature spiral galaxy from cosmic dawn is rewriting ideas about how fast the Universe built its first galaxies.

Galaxies appeared not just as distant objects, but as vast systems shaped by gravity, time, and violence. Deep-field images revealed thousands of galaxies in a single patch of sky, each containing ...

The James Webb Space Telescope has observed the universe's earliest supernova. This event offers a rare glimpse into the early universe. It shows how ...

NASA has completed assembly of the Nancy Grace Roman Space Telescope, preparing for final testing and launch by May 2027 to ...

Two icons of discovery, NASA's James Webb Space Telescope and NASA's Curiosity rover, have earned places in TIME's "Best Inventions Hall of Fame ...

A New Mexico college campus is working towards having its own astronomy center and it’s not just a place to gaze at the stars ...

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...

Knotted structures once imagined by Lord Kelvin may actually have shaped the universe’s earliest moments, according to new ...