CXC Home | Search | Help | Image Use Policy | Latest Images | Privacy | Accessibility | Glossary | Q&A
-Galaxies with unusually energetic activity, including high-energy jets, that is related to a central supermassive black hole.
21 Mar 24
A rapidly growing supermassive black hole, or quasar, located about 3.4 billion light-years from Earth.
22 Feb 23
Merging dwarf galaxies about 760 million and 3.2 billion light-years away respectively.
31 Aug 21
A single or pair of growing supermassive black holes located 11.8 billion light-years from Earth.
14 Apr 21
A galaxy with a supermassive black hole at its center located about 55 million light years from Earth.
14 Jan 21
Two of seven triple galaxy mergers that are located between 370 million and one billion light years away from Earth.
14 Jan 21
One of seven triple galaxy mergers located about 890 million light years from Earth.
14 Jan 21
One of seven triple galaxy mergers located about 960 million light years from Earth.
23 Apr 20
A galaxy with a central supermassive black hole about 250 million light years from Earth.
11 Sep 19
A galaxy containing a supermassive black hole about 250,000 light years from Earth.
08 Aug 19
A black hole obscured by gas and dust about 13 billion light years from Earth.
03 Jul 19
Six quasars ranging in distance from 8.8 billion to 10.9 billion light years from Earth.
03 Jul 19
Six quasars ranging in distance from 8.8 billion to 10.9 billion light years from Earth.
03 Jul 19
Six quasars ranging in distance from 8.8 billion to 10.9 billion light years from Earth.
03 Jul 19
Six quasars ranging in distance from 8.8 billion to 10.9 billion light years from Earth.
29 Jan 19
About 1,600 rapidly growing black holes located up to 12.7 billion light years from Earth.
09 Jan 19
A large galaxy in the middle of a galaxy cluster about 760 million light years away.
11 Jan 18
A galaxy with a supermassive black hole about 800 million light years away.
30 Nov 17
An object possibly containing two supermassive black holes about 2.6 billion light years away.
26 Jun 17
Arp 299: A system of merging galaxies located about 140 million light years from Earth.
11 May 17
A candidate recoiling black hole located in an elliptical galaxy about 3.9 billion light years away.
06 Feb 17
An X-ray source located in a small galaxy about 1.8 billion light years from Earth.
19 Oct 16
An elliptical galaxy, also known as Centaurus A, located about 12 million light years away.
14 Oct 16
Six objects ranging in location from about 20,000 to nearly 3 billion light years away.
10 Aug 16
A galaxy and a cloud of cool gas located about 680 million light years from Earth.
30 Sep 15
A galaxy cluster nicknamed the "Phoenix Cluster" located about 5.7 billion light years from Earth.
28 May 15
Extremely tiny bubbles and irregularities in space-time predicted by certain theories.
28 May 15
Extremely tiny bubbles and irregularities in space-time predicted by certain theories.
28 May 15
Extremely tiny bubbles and irregularities in space-time predicted by certain theories.
28 May 15
Extremely tiny bubbles and irregularities in space-time predicted by certain theories.
28 May 15
Extremely tiny bubbles and irregularities in space-time predicted by certain theories.
30 Apr 15
Three of 51 distant quasars ranging from about 5 billion to 11.5 billion light years from Earth.
30 Apr 15
Three of 51 distant quasars ranging from about 5 billion to 11.5 billion light years from Earth.
30 Apr 15
Three of 51 distant quasars ranging from about 5 billion to 11.5 billion light years from Earth.
30 Apr 15
Three of 51 distant quasars ranging from about 5 billion to 11.5 billion light years from Earth.
23 Apr 14
Four images of galaxies that have been made using data from both amateur and professional telescopes.
06 Feb 14
This galaxy contains a gargantuan jet blasting away from a central supermassive black hole.
15 Aug 12
A galaxy cluster, whose official name is SPT-CLJ2344-4243, located about 5.7 billion light years from Earth.
04 Jun 12
The galaxy at the center of this image contains an X-ray source, CID-42, with exceptional properties.
30 Jun 10
A source in the Cosmic Evolution Survey field thought to be at a distance of almost 4 billion light years.
11 May 10
A massive "wall" of galaxies at a distance of 400 million light years from Earth.
03 Mar 10
A spiral galaxy about 50 million light years from Earth containing a supermassive black hole.
14 May 09
A galaxy, about 600 million light years away, with a supermassive black hole at its center.
05 Aug 08
The largest galaxy in the Virgo cluster of galaxies at a distance of 60 million light years away.
12 Apr 07
Observations of the galaxy NGC 1365 have captured an eclipse of the supermassive black hole at its center.
29 Mar 07
Astronomers think that there are enormous black holes at the centers of most, if not all, galaxies.
12 Mar 07
This panorama is the largest contiguous field ever obtained by the Chandra X-ray Observatory.
06 Apr 06
A galaxy cluster with a central galaxy, NGC 1128, that has produced a giant double radio source known as 3C 75.
23 Mar 06
This illustration depicts a quasar in the center of a galaxy that has turned on and is expelling gas at high speeds.
21 May 03
One of two massive galaxies that are enveloped by vast clouds of high-energy particles.
21 May 03
One of two massive galaxies that are enveloped by vast clouds of high-energy particles.
23 Apr 03
A powerful jet in an active galaxy located about 11 million light years from Earth.
07 Aug 02
An active galaxy located about 11 million light years from Earth in the constellation Centaurus.
13 Mar 02
A closely aligned pair of quasars about 11 billion light years from Earth in the constellation Pisces.
06 Feb 02
A quasar about 10 billion light years from Earth located in the constellation Crater.
06 Aug 01
A nearby massive elliptical galaxy with an active galactic nucleus in the constellation Centaurus.
29 May 01
Different points-of-views from which astronomers observe quasars with X-ray satellites.
14 May 01
Chandra's observations of a large, nearby galaxy in the constellation of Circinus.
06 Nov 00
Flickering Quasar may help Chandra Measure the Expansion Rate of the universe
26 Aug 99
A luminous quasar in the constellation Mensa so distant that we see it as it was 6 billion years ago.