24 December 2012, 07:00 AM ET
A brief rundown of some of the year's record-breaking astronomical finds.
19 December 2012, 03:12 PM ET
Ultramassive black holes can weigh millions to billions of times the mass of the sun.
18 December 2012, 06:32 PM ET
X-ray telescopes have helped uncover previously unknown, giant black holes right in our cosmic backyard.
18 December 2012, 02:55 PM ET
A new study of the some of the biggest known black holes has concluded with new estimates in size. 10 of the 18 surveyed could be 10 to 40 billion times more massive than our Sun.
13 December 2012, 02:01 PM ET
The relativistic jets created by ancient supermassive black holes and tiny baby ones are more similar than previously realized.
12 December 2012, 01:01 PM ET
The object, called a microquasar, is the first discovered beyond the Milky Way.
12 December 2012, 10:40 AM ET
Astronomers have put together an amazing new image of elliptical galaxy Hercules A.
06 December 2012, 09:34 AM ET
At 12.4 billion light years from Earth, the enormous jet gives astronomers a peek at the life of giant black holes that existed not long after the Big Bang.
05 December 2012, 11:15 AM ET
The brightest object in the early universe is helping to shine light on conditions soon after the Big Bang.
05 December 2012, 06:01 AM ET
Huge black holes in these galaxies spew out tremendous amounts of X-rays.
28 November 2012, 01:01 PM ET
The ginormous black hole in galaxy NGC 1277 is the equivalent of 17 billion suns.
28 November 2012, 06:00 AM ET
An eruption of matter from a quasar could show how galaxies shed weight.
27 November 2012, 02:44 PM ET
This remarkable space wallpaper shows an artist’s impression depicts the newly discovered stellar-mass black hole in the spiral galaxy NGC 300.
15 November 2012, 02:00 PM ET
A strongly magnetic black hole can align jets and disks to its own spin.
15 November 2012, 01:10 PM ET
See images from a computer simulation that reveals how black holes are affected by magnetic fields.
09 November 2012, 03:09 PM ET
When the most gigantic stars reach the end of their lives, they collapse into something dense enough to warp space and time: a black hole. With a gravitational pull strong enough to capture even light itself, black holes are challenging to find.
09 November 2012, 01:53 PM ET
This quasar is the most distant yet found and is seen as it was just 770 million years after the Big Bang in this space wallpaper.
06 November 2012, 12:11 PM ET
Using NASA's Chandra X-Ray space telescope, astronomers have discovered one of the smallest supermassive black holes in the middle of an unlikely host galaxy.
30 October 2012, 03:09 PM ET
Here's a brief rundown of the spookiest things in space, from vampire stars to zombie planets.
26 October 2012, 07:00 AM ET
The galaxy's core may have been puffed up by a black hole merger, scientists say.
23 October 2012, 07:00 AM ET
Material falling into a black hole has created a cosmic jet similar to those seen streaming from jet planes.
22 October 2012, 02:48 PM ET
Astronomers spotted a rare X-ray nova near the center of our galaxy, revealing a stellar-mass black hole siphoning gas off a sun-like star.
19 October 2012, 04:08 PM ET
A second court appeal falls short.
05 October 2012, 03:11 PM ET
A few degrees from the center of our galaxy, a black hole feeding off a nearby star is caught belching a sudden outburst of X-rays in a telltale pattern. NASA's Swift satellite spotted this secretive pair 20-30 million light years from Earth.
04 October 2012, 02:00 PM ET
A star that moves at record-breaking speed could help astronomers test Einstein's theory of general relativity.
03 October 2012, 01:01 PM ET
Star clusters like this were thought to contain no black holes, or maybe just one.
03 October 2012, 12:39 PM ET
The find could help explain why bigger galaxies have bigger central black holes.
27 September 2012, 05:15 PM ET
Telescope peers in at closest matter swirling around a black hole.
29 August 2012, 01:12 PM ET
The graceful gravitational dance of two colliding galaxies can feed the supermassive black holes at their center, rearranging and heating up the gas within these galaxies as seen in this simulation.
29 August 2012, 07:40 AM ET
The NASA briefing will discuss new discoveries about monster black holes and rare galaxies.
22 August 2012, 01:04 PM ET
How can you swim upstream in the river of time? Physicists Charles Liu and Michio Kaku have some answers.
22 August 2012, 06:30 AM ET
The cosmic "seeds" may help explain how our galaxy's monster black hole formed.
15 August 2012, 07:55 PM ET
This space wallpaper reveals an artist's impression of galaxy at center of Phoenix Cluster.
15 August 2012, 05:10 PM ET
Some key facts about the faraway cluster, which may be the most massive ever found.
15 August 2012, 06:42 AM ET
When two black holes collide they could create gravitational waves.
13 August 2012, 05:32 PM ET
Black holes are objects made completely of warped space and time.