On Jan. 26, 2017, astronomers announced that the universe is expanding faster than previously thought. See photos of the quasars seen by the Hubble Space Telescope that made the discovery possible.

This quasar, J012555.11−012925.00, is shown on the right of the image. As the galaxy on the right collides with the galaxy on the left, it pierces its clouds of gas and dust with intense ...

The Hubble Space Telescope has photographed the eerie, green-glowing gas highlighted by a recently deceased quasar. The Milky-Way-sized object, located about 730 million light-years away ...

Quasar galaxy 3C 297 is all alone in space, but from what we know, it should be within a galaxy cluster. How did this happen? ... (photo credit: NASA, ESA, M. Chiaberge (STScI)) ...

The Hubble Space Telescope captured some weird, unidentified stuff in the most detailed photos ever taken of the immediate space surrounding a quasar.. Quasars, a shortening of the term "quasi ...

The black hole powering a quasar 13 billion light-years from Earth is half as massive as all the stars around it — a record high ratio for a quasar host galaxy, astronomers report in a paper ...

But not a single such galaxy lies within 16.3 million light-years (dotted black circle) of the quasar, which suggests that its radiation has thwarted star formation in neighboring galaxies. T.S ...

Astronomers first discovered quasars, the brightest and most powerful objects in the universe, 60 years ago. Now, scientists think they have unlocked the mystery behind what ignites these ...

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

A team of astrophysicists say quasars, some of the most brilliant phenomena in the universe, are likely caused by collisions between galaxies. Quasars are a type of active galactic nuclei; they ...

Astronomers first discovered quasars, the brightest and most powerful objects in the universe, 60 years ago. Now, scientists think they have unlocked the mystery behind what ignites these ...