There are bands of quasar ghosts haunting deep space. The Hubble Space Telescope has snapped rare images of strange, looped structures that are believed to be long tails of gas formed during a violent ...

NASA’s Hubble Space Telescope has photographed a set of wispy, goblin-green objects that are the ephemeral ghosts of quasars that flickered to life and then faded. The glowing structures have looping, ...

Hubble has spied a set of ephemeral quasar ghosts circling the graves of quasars that flickered to life and then faded. The eight unusual looped structures orbit their host galaxies and glow in an ...

In 1960 Allan Sandage and Thomas Matthews discovered, 3C 48, a strange radiation source in deep space. It was unimaginably distant, 3.9 billion light years. A beam of light from this object, ...

As two distant galaxies trade blows in an ancient duel billions of years old, one belligerent has clearly proven itself more ruthless than the other. Each time the galaxies conclude their posturing ...

A galaxy hosting a quasar in the distant universe, right, jabs another galaxy with its beam of intense radiation as the two bump and collide. Credit: ALMA / ESO / NAOJ / NRAO / Sergei Balashev / ...

Green clouds of gas tens of thousands of light-years wide blaze in a series of stunning new images captured by the Hubble Space Telescope. The eight eerie objects betray the past presence of quasars, ...

The galaxy hosts a bright quasar that may have illuminated the ghostly structure by hitting it with a beam of light from hot gas around a central black hole. NASA, ESA, and W. Keel (University of ...