06 April 2012, 03:58 PM ET
Centaurus A likely formed when a spiral galaxy and an elliptical galaxy merged.
06 April 2012, 07:00 AM ET
The galactic monsters devour one star in a binary system and eject the other one.
05 April 2012, 06:00 AM ET
Soon, scientists hope to be able to directly image the center of the Milky Way to look for a black hole there.
30 March 2012, 04:27 PM ET
Due to launch in the Spring of 2012, NASA's NuSTAR mission will scan for lively black holes, radioactive supernova remnants, galactic jets that shoot out at nearly light-speed and other sources of high-energy X-rays.
30 March 2012, 02:13 PM ET
NASA's NuSTAR mission will peer through the dust and gas to see what what lies in the centers of other galaxies.
27 March 2012, 02:20 PM ET
The black hole was found in the galaxy Centaurus A, which is 12 million light-years away.
16 March 2012, 05:02 PM ET
More time is needed to review rocket software to launch NASA's NuSTAR mission.
16 March 2012, 10:00 AM ET
Bent light can magnify distant galaxies in an effect called gravitational lensing.
28 February 2012, 03:33 PM ET
These outflows could shape the growth of black holes and dictate star formation in their host galaxies.
23 February 2012, 01:07 PM ET
The extremely bright X-ray source in the Andromeda galaxy was first detected in late 2009.
21 February 2012, 04:49 PM ET
The winds are the fastest yet measured from a stellar-mass black hole.
15 February 2012, 03:19 PM ET
The dwarf galaxy was likely shredded to pieces by its parent.
09 February 2012, 07:00 AM ET
The supermassive black hole is spewing out X-ray flares on a daily basis.
03 February 2012, 04:00 AM ET
The space telescope captured an amazing view of spiral galaxy NGC 1073 and three quasars that are right outside its galactic neighborhood. Located in the constellation of Cetus, the galaxy has a bar structure in the center similar to the Milky Way.
25 January 2012, 06:01 AM ET
Astronomers found a link between active starburst galaxies in the early universe to giant elliptical galaxies we see today.
25 January 2012, 06:00 AM ET
Light traveling for 10 billion years now gives astronomers a glimpse into the largest galaxies in the Universe. Found in the Fornax constellation, these galaxies (highlighted in red) burst on the cosmic scene with very rapid, intense star formation.
18 January 2012, 05:05 PM ET
A network of radio telescopes could provide a picture of our galaxy's central black hole.
14 January 2012, 07:00 AM ET
From billions of alien planets dotting our universe to a black hole that fires into space, it's been a remarkable week for space photography.
13 January 2012, 07:00 AM ET
Several different instruments watched the dramatic event unfold.
11 January 2012, 02:35 PM ET
This animation shows the black hole system H1743-322 ejecting powerful gas 'bullets' during its mid-2009 outburst.
16 December 2011, 07:00 AM ET
Black holes have heartbeats that pulse through the Milky Way.
15 December 2011, 12:16 PM ET
During galactic scans, NASA's Rossi X-Ray Timing Explorer has detected patterns that are similar to that of an electrocardiogram - in x-rays. This comparison of two black hole's shows how the time between x-ray blips can determine their size.
14 December 2011, 01:01 PM ET
The giant black hole at the center of our galaxy is about to chow down on something monster meal.
13 December 2011, 11:17 PM ET
Scientists say there are Higgs bosons in space, but they are like trees falling in the forest with no one there to hear them.
12 December 2011, 05:19 PM ET
The finding could explain how the universe's first supermassive black holes grew so quickly
10 December 2011, 08:00 AM ET
From a comet diving into the sun to planets made of diamonds and more, it was a busy week in space.
10 December 2011, 08:00 AM ET
From a dragonfish shape in the sky to a rainbow image of the asteroid Vesta, see the most amazing images from space this week.
06 December 2011, 01:07 PM ET
Gamma-rays are the highest-energy form of light in the universe.
05 December 2011, 01:06 PM ET
An International team of astronomers have come across two massive black holes - 10 billion times larger than the sun. Dunlap Institute for Astronomy and Astrophysics professor James Graham and Nicholas McConnell explain the discovery.
05 December 2011, 09:56 AM ET
Two newly discovered black holes tip the scales at more than 9 billion times the mass of our sun.
29 November 2011, 06:00 AM ET
Refining the distance to the solar mass black hole in Cygnus X-1 allowed astronomers to precisely calculate its characteristics.
21 November 2011, 09:11 AM ET
Astronomers have more precisely determined the spin, mass and distance of what they are confidently calling a stellar-mass black hole in the Cygnus X-1 system. Hawking bet against its existence three decades ago. Take a guided tour of the system.
16 November 2011, 01:25 PM ET
Astronomers used NASA's WISE space telescope to take a detailed look at black hole jets.
16 November 2011, 11:13 AM ET
The faint glimmer of stuff emitted by black holes is called Hawking radiation. It's made of particles that escaped by way of quantum tunneling.
15 November 2011, 02:48 PM ET
Atari has updated the gaming classic with new features, multiple ships and even black holes. Available for iPhone, iPad and iPod touch!
05 November 2011, 01:10 AM ET
Was it the discovery of the brightest, youngest and farthest pulsar star, dusty cloaks around huge black holes, or Hubble Telescope catching a never-before-seen look at black hole's maw?