What’s really inside a black hole? Long considered one of the greatest cosmic mysteries, black holes were first predicted in 1916 through Einstein’s theory of relativity. Yet it wasn’t until the 1960s ...

Quasar 0957+561, the first known gravitationally lensed quasar, lies near NGC 3079 in Ursa Major. Here's how to find and ...

Names are a strange thing in astronomy. Sometimes scientists come up with grandiose, simple name, like the Extremely Large Telescope. Other times, they come up with unique sounding names, like quasars ...

NASA astronomers have confirmed what may be the greatest discovery of the era. They found a significant reservoir of water that was hidden in the cosmos, and that surrounds a quasa ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Particles orbiting a black hole could collide at colossal energies, generating collision products that may offer valuable ...