20 April 2009, 01:00 PM ET
20 April 2009, 12:59 PM ET
20 April 2009, 12:47 PM ET
Jewels And Junk
20 April 2009, 12:34 PM ET
The Moon and Earth eclipse choreography is explained.
20 April 2009, 12:28 PM ET
Aircraft, robotic satellites and the International Space Station flow past us in orbits that look like "Rivers In The Sky"
20 April 2009, 12:25 PM ET
Know Your Place
20 April 2009, 12:25 PM ET
How big is the universe? How do you measure distances in space? Radar and other methods can help you out.
20 April 2009, 12:12 PM ET
Take an in depth tour of our universe with astronomer Brent Tully.
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.