20 April 2009, 08:38 AM ET
What spectroscopes do for astronomers and how the HST will use one.
14 April 2009, 12:37 PM ET
A jet of gas spewing from a huge black hole has mysteriously brightened, flaring to 90 times its normal glow.
12 March 2009, 11:02 AM ET
Fermi telescope team makes map, list of best gamma ray sources yet found.
04 March 2009, 01:01 PM ET
Spectrum of quasar shows evidence of orbiting binary black hole system.
28 January 2009, 09:00 AM ET
Astronomers used Playstation 3 consoles to study black hole vibrations.
27 January 2009, 10:56 AM ET
When a supermassive star dies, it's corpse collapses into a knot so tight not even light can escape. This drain on the fabric of the Universe warps the shape of space. And the flow of time.
26 January 2009, 10:09 AM ET
VLT Adaptive Optics shows stellar nurseries, black hole at center of nearby galaxy.
06 January 2009, 05:31 PM ET
Observations show black holes once more massive than galactic bulges, likely came first.
05 January 2009, 12:22 PM ET
Discovery of proto-stars near galactic center show stars can form near black hole.
18 December 2008, 08:03 AM ET
What's more than 100 times brighter than a supernova? Well, it's all in how you look at it. Astrophysicist Mike Shara helps us understand that what you see depends on where you are...
16 December 2008, 11:48 AM ET
The material around black holes has a uniform shape.
16 December 2008, 07:00 AM ET
Astronomer David Meier on the Universe's Most Extreme Sport
09 December 2008, 07:15 PM ET
Scientists have imaged stars orbiting our galaxy's central black hole.
08 December 2008, 09:22 AM ET
A black hole could explain the green cloud lurking around a nearby galaxy.
04 December 2008, 12:00 PM ET
A new image shows Omega Centauri in all its splendor.
24 November 2008, 08:38 AM ET
Bubbles of hot plasma can keep black-hole growth in check.
18 November 2008, 12:53 PM ET
Two telescopes simultaneously capture flare-ups from Milky Way's supermassive black hole.
11 November 2008, 08:05 AM ET
Hefty black holes could be lurking at the centers of most, if not all, galaxies.
10 September 2008, 01:12 PM ET
Gamma-ray burst most distant object visible to naked eye, revises theory of formation.
03 September 2008, 01:05 PM ET
The closest view yet of the heart of the Milky Way presents new evidence for a giant black hole there.
21 August 2008, 02:16 PM ET
Scientists have discovered how the stars near the massive black hole at the center of the Milky Way could have formed.
20 August 2008, 01:25 PM ET
Black holes appear to come only in small or large sizes.
13 August 2008, 12:39 PM ET
What the blazes is a blazar? Black hole experts illuminate the super-bright objects at the cores of certain galaxies.
29 July 2008, 12:43 PM ET
Barred galaxies may not have been as common in young universe.
24 July 2008, 02:15 PM ET
An exploding star falls between a supernova and gamma ray burst.
23 June 2008, 04:04 PM ET
Black hole feeding frenzies may be fueled by galactic collisions, a new study suggests.
23 June 2008, 07:00 AM ET
Regardless of where black holes dine, they have the same culinary habits, research found.
22 June 2008, 08:00 PM ET
ESA & NASA x-ray observatories help astronomers measure the impact of black holes and pinpoint their locations.
04 June 2008, 11:57 AM ET
Some of the most massive black holes use high-energy jets to stomp out star-formation.
03 June 2008, 07:16 AM ET
A new space telescope could probe the dark corners of astrophysics.
02 June 2008, 11:01 AM ET
The finding gives astronomers a way to weigh so-called supermassive black holes.
21 May 2008, 01:00 PM ET
For first time, astronomers see supernova in act of exploding through X-ray blast.
14 May 2008, 11:50 PM ET
Physicists announced today a way to explain how information could escape from a black hole.
06 May 2008, 06:47 AM ET
Star swallowed by black hole emits flare, illuminates galactic structures.
29 April 2008, 04:12 PM ET
Astronomers observe a black hole in the process of leaving its parent galaxy.
28 April 2008, 07:00 AM ET
An up-close view of a black hole reveals secrets of how it sprays jets outward.