NASA's newest astrophysics space telescope launched in March on a mission to create an all-sky map of the universe. Now ...

Two studies fill in gaps about the cosmos’s ordinary matter. One maps it all, even the “missing matter.” The other details one of its hiding spots.

The object 9.1 billion light-years away, named FRB 20230521B, now holds the record for the most distant FRB ever recorded.

A groundbreaking new survey from China’s LHAASO observatory has unveiled powerful ultrahigh-energy gamma-ray emissions across ...

Despite decades of searching, scientists still haven’t found the elusive substance that holds galaxies together: dark matter.