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.
09 August 2012, 07:00 AM ET
The map could help crack the mystery of dark energy and dark matter.
06 August 2012, 07:00 AM ET
A star in the process of being gobbled by a black hole is letting of dying screams.
02 August 2012, 02:01 PM ET
The most basic tenet of black holes, that nothing can escape, is untrue.
02 August 2012, 02:00 PM ET
It remains a mystery how supermassive black holes get to be so big.
31 July 2012, 07:00 AM ET
The NuSTAR space telescope will begin its science mission phase in August.
11 July 2012, 07:01 AM ET
Dark galaxies are small, gas-rich objects from the early universe.
03 July 2012, 12:14 PM ET
The black hole-hunting NuSTAR observatory has taken its first images in high-energy X-ray light.
02 July 2012, 11:42 AM ET
The meal will provide a rare chance to watch our home black hole eat something.
21 June 2012, 02:15 PM ET
The black hole-hunting NuSTAR observatory has extended a mast to separate its optics from their focal point.
21 June 2012, 07:00 AM ET
The fledgling NuSTAR telescope will stretch out a boom to separate its optics from their focal point.
20 June 2012, 07:00 AM ET
Black holes more commonly eat many small meals rather than a single huge feast, a study found.
19 June 2012, 04:31 PM ET
Our home in space is a vast galaxy containing 400 billion suns, at least that many planets, and a 4-billion-solar-mass black hole at the center.
13 June 2012, 12:00 PM ET
The NuSTAR mission will search the skies with X-ray eyes.
13 June 2012, 07:00 AM ET
NASA's NuSTAR space telescope will lift off Wednesday from an airplane-born rocket.
12 June 2012, 08:59 AM ET
The air-launched Nuclear Spectroscopic Telescope Array, NuSTAR, will launch on a Pegasus rocket into Earth orbit where it will detect high-energy X-rays to uncover hidden black holes, exploded stars and other features of the universe.
12 June 2012, 06:00 AM ET
The NuSTAR telescope will try to shed some light on the dark parts of the universe.
11 June 2012, 05:07 PM ET
A black hole-hunting telescope called NuSTAR is next on the launch docket.
10 June 2012, 09:16 AM ET
From complete coverage of Venus crossing the sun to a New York space shuttle, it's been an unforgettable week in space.
08 June 2012, 05:29 PM ET
The NuSTAR telescope will search for black holes after it launches next week.
08 June 2012, 01:25 PM ET
By focusing X-rays, the NuSTAR space telescope will study black holes and other exotic objects.
07 June 2012, 01:19 PM ET
A black-hole hunting spacecraft called GEMS will not be built, NASA says.
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.