Astronomers using NASA’s Hubble Space Telescope have found that Markarian 231 (Mrk 231), the nearest galaxy to Earth that hosts a quasar, is powered by two central black holes furiously whirling about ...

NASA’s Hubble Space Telescope was used to find two supermassive black holes in Markarian 231. (Credit: Space Telescope Science Institute) In a staggering find, scientists recently announced that the ...

The closest quasar to the Milky Way is giving up its secrets, thanks to an innovative technique developed by Japanese astronomers. When you purchase through links on our site, we may earn an affiliate ...

A two-panel image of quasar 3C 273, taken by different Hubble instruments. The top panel is a WFPC2 image of 3C 273. It looks like a bright white car headlight. There's a linear orange-white ...

The closest quasar to Earth might harbor a rare pair of supermassive black holes. The dark duo is probably left over from a galaxy collision, researchers report, and offers a way to test theories ...

One of the brightest objects in the cosmos just had its close-up. Using the Hubble Space Telescope, astronomers homed in on a quasar called 3C 273, some 2.5 billion light-years from Earth. It's one of ...

A very dark dance is going on about 600 million light-years away from Earth. That's where the closest quasar to our planet lies, and scientists recently figured out that it is fueled by two black ...

Silla observatory. They find that the lensed quasar [2] is located at a distance of 6,300 million light-years (its “redshift” is z = 0.66 [3]) while the lensing elliptical galaxy is rougly halfway ...

Astronomers stared deep into the heart of a hungry black hole, only to discover a jet of X-rays beaming out of it that is 60,000 times hotter than the surface of the sun. Quasars like J1144 are so ...

Astronomers using NASA’s Hubble Space Telescope have found that Markarian 231 (Mrk 231), the nearest galaxy to Earth that hosts a quasar, is powered by two central black holes furiously whirling about ...

An international team of astronomers has discovered a complex cosmic mirage in the southern constellation Crater (The Cup). This "gravitational lens" system consists of (at least) four images of the ...