06 June 2012, 03:37 PM ET
Many black holes may roam freely through intergalactic space.
02 June 2012, 07:25 AM ET
From complete coverage of SpaceX splashing down in the Pacific to John Glenn awarded the Medal of Freedom, it's been a thrilling week in space.
01 June 2012, 09:35 AM ET
Dust and gas surrounding the supermassive black hole accretion disk in galaxy NGC 4151 is reflecting an echo from an x-ray emitting source high above the disk. This helps scientists map the environment around (and created by) the black hole.
30 May 2012, 03:28 PM ET
The NuSTAR mission will study how black holes form and grow.
29 May 2012, 05:58 PM ET
Do you know your Schwarzschild radius from your Chandrasekhar limit? Find out here.
29 May 2012, 05:08 PM ET
NASA is preparing to launch a new X-ray observatory called NuSTAR to study black holes.
07 May 2012, 07:36 AM ET
From the bright supermoon to earth-like alien planets munching on stars, it's been a busy week in space.
02 May 2012, 02:12 PM ET
Astronomers have seen evidence that a supermassive black hole 2.7 billion light years away has shredded a star. In this visualization, some of the murdered star's debris falls into the void, but some is spun up and shot out at high velocities.
02 May 2012, 01:01 PM ET
The unlucky star was ripped to shreds by a giant black hole 2.7 billion light-years away.
01 May 2012, 03:08 PM ET
The outburst came from a black hole in the spiral galaxy M83.
22 April 2012, 07:27 AM ET
From the transfer of shuttle Discovery to its new home to a SPACE.com tee up in a balloon, it's been a busy week in space.
15 April 2012, 07:27 AM ET
From an expedition to explore auroras to sun's sibling stars, it's been a busy week in space.
13 April 2012, 06:39 AM ET
A pulsar near the black hole could help scientists understand how it distorts the space-time.
07 April 2012, 06:12 AM ET
From cabs in space to alien earths, it's been a busy week in space. Vote for the week's best space story.
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.