QUASAR

Quasars – National Radio Astronomy Observatory

A new Technique Could use Quasars to Directly Measure the Expansion Rate of the Universe - Universe Today

Astronomers discover the brightest quasar ever discovered

Quasar - Wikipedia

Rare quasar triplet forms one of the most massive objects in the universe

Astronomers Using NASA's Hubble Discover Quasars Acting as Gravitational Lenses - NASA Science

Brightest and fastest-growing: astronomers identify record-breaking quasar

ESA - Hubble captures a 'quintuple' quasar

Quasar - Wikipedia

What is the difference between quasars, pulsars and neutron stars?

Sorry, Astronomers Haven't Found The Brightest Quasar In The Entire Universe

QUASAR MKII – Ex Machina Soundworks

Bad Astronomy, Hubble sees a quasar multiplied 5 times by gravitational lens

Hubble Finds That the Nearest Quasar Is Powered by a Double Black Hole

Time dilation finally observed in quasars – CERN Courier