One galaxy uses a quasar like a cosmic weapon, blasting its opponent and halting star formation—an epic deep-space duel seen ...

This radiation now impacts the neighboring galaxy, disrupting its star-forming regions. The quasar’s radiation breaks molecular clouds into small, dense clumps that are too tiny to form new stars.

Credit: ESO / M. Kornmesser illustration When astronomer Maarten Schmidt found the first quasar in 1963, it looked like a star, though it was much too far away for that to have been the source.

Astronomers witnessed two galaxies engaged in an intense deep-space battle for the first time. Watch the “cosmic joust” in action.

According to researchers, the quasar’s radiation strips away much of the gas and dust in the companion galaxy, leaving behind only small, dense clumps that are likely too compact to kick off star ...

A newly analyzed radio image reveals twin lobes stretching roughly 66,000 light-years on each side of a quasar called ...

By combining data from the Subaru Telescope and James Webb Space Telescope, researchers have discovered distant quasars that ...

The moment one galaxy spears another with a powerful beam of radiation shooting from its central black hole has been spotted ...

Astronomers have observed two distant galaxies - both possessing roughly as many stars as our Milky Way - careening toward each other before their inevitable merger at a time when the universe was ...