galaxy

A headshot of Anil Seth, wearing glasses and a collared shirt, in front of a photo from a space telescope that shows millions of stars.

Black holes and humankind

Learn how understanding black holes can help us understand ourselves.


A bowtie-shaped spectral of lights representing the universe. The center is bright green, then radiates the hot pink, magenta, yellow, and then white and finally gray.

Largest 3-D map of the universe ever created

The results are measurements of more than 2 million galaxies and quasars covering 11 billion years of cosmic time.


Discovery points to origin of mysterious ultraviolet radiation

Infalling gas found, star-forming galaxies likely primary energy source of Lyman-alpha radiation emitted from gigantic hydrogen gas blobs.


CATCHING SOME RAYS

Physicists plan to expand Telescope Array cosmic ray observatory, seeking the source of the most energetic particles in the universe.