A new study suggests that "little red dots" spied by the James Webb telescope could be the universe's short-lived first generation of gigantic stars, challenging an existing theory.

A vast, flat sheet of dark matter may solve the long-standing mystery of why our neighboring galaxy Andromeda is speeding toward us while our other neighbors are moving away from…

A researcher has captured comet 3I/ATLAS glowing green and hiding its tail in a new image from the Lowell Observatory's powerful Discovery Telescope as we enter a critical observation phase…