quasars

These crazy cosmic beasts defy explanation.

Astronomers just found a galaxy with a glowing heart that is almost as old as the universe itself.

They start with a bang and end up gobbling up everything near them.

A bright quasar shining through the gas around another galaxy provides insight into galactic feeding habits.

An eruption of matter from a quasar could show how galaxies shed weight.

A new map of the early universe reveals the history of how dark energy has warred with gravity.

Dark galaxies are small, gas-rich objects from the early universe.

Black holes more commonly eat many small meals rather than a single huge feast, a study found.

New observations through cosmic magnifying glasses support the idea that the universe's expansion is accelerating.