Quasars are the most luminous type of active galaxy. They emit light across the electromagnetic spectrum, produce powerful ...

The Hubble Space Telescope has provided the most detailed survey of the Andromeda galaxy, revealing new clues about its ...

Scientists are revolutionizing our understanding of the universe’s most mysterious component: dark matter, the invisible ...

You may not know it, but right now there’s a huge cosmic rave party happening far, far above our heads. The chief party goers ...

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.