This idea is called the big bang model—which is an unfortunate name because it brings to mind a cosmos expanding like an ...

Dark matter doesn't absorb or give off light so scientists can't study it directly. But they can observe how its gravity ...

In a galaxy far, far away, there lie clues to the cosmic dawn—the first few hundreds of millions of years in our 13.8-billion ...

"There is a growing chasm between theory and observation related to the early universe, which presents compelling questions ...

Astronomers from the University of Tokyo in Japan and elsewhere have employed the James Webb Space Telescope (JWST) to ...

By measuring the galaxy’s redshift, the scientists behind the discovery were able to confirm that its light has been ...

The latest map, published Monday in the journal Nature Astronomy, includes information on new galaxy clusters and the strands ...

This NASA/ESA/CSA James Webb Space Telescope Picture of the Month brings us a scene from the distant universe. Pictured here is the galaxy cluster MACS J1149.5+2223, or MACS J1149 for short, which is ...

The James Webb Space Telescope has detected the most distant galaxy ever observed, MoM-z14, offering new insight into star formation and galaxy growth in the early universe ...

Discover seven unusual galaxies defying scientific predictions, from impossibly bright early universe objects to astrophysics ...

LOS ANGELES — A galaxy once considered the oldest has reclaimed its title, scientists reported Wednesday. Poring through Hubble Space Telescope photos, the team recalculated the galaxy's age and ...