02 May 2012, 07:00 AM ET
A new study challenges the existence of dark matter in the universe.
02 May 2012, 06:01 AM ET
The Messier 78 nebula is located just north of Orion's Belt.
01 May 2012, 12:59 PM ET
Modern constellations were invented to fill up some of the large gaps in the sky filled with dim stars.
25 April 2012, 02:31 PM ET
A new photo from the Spitzer Space Telescope shows a whole new side of the galaxy.
25 April 2012, 06:01 AM ET
The NGC 6604 star cluster is located in the constellation of Serpens (The Serpent).
13 April 2012, 11:15 AM ET
Within the constellation of Piscis Austrinus lies the star Fomalhaut. It is surrounded by a huge disc of dust - creating its comparison to 'the Eye' made famous by the Lord of the Rings trilogy. Europe'e ALMA telescope captured this intimate view.
11 April 2012, 01:01 PM ET
New observations help clear up the mysterious ways red giant stars shrivel up.
09 April 2012, 05:03 AM ET
Amateur astrophotographers took these pictures of the glorious night sky.
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.
03 April 2012, 07:00 AM ET
Researchers joined up five radio telescopes, three in Australia and two in South Korea.
02 April 2012, 11:43 AM ET
April 2012 witnesses Saturn at opposition, a crescent-phase Venus, the Lyrid Meteor Shower – where up 20 meteors per hour may be seen– and, for those with telescopes and dark skies, the Leo Triplet galaxies.
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.
30 March 2012, 10:46 AM ET
NASA's Kepler Mission, a space-based telescopic camera, has discovered planets orbiting stars beyond our Sun. Though an Earth-like planet in the "Goldilocks Zone" hasn't yet been positively identified, astronomers believe it's just a matter of time.
28 March 2012, 08:01 PM ET
The new photo captures perhaps 1 percent of our galaxy's stars.
27 March 2012, 07:01 AM ET
NASA's Spitzer Space Telescope is designed to study objects in infrared light.
21 March 2012, 07:01 AM ET
The new image shows more than 200,000 galaxies that each contains billions of stars.
16 March 2012, 06:01 AM ET
The globular cluster at the center of our galaxy contains stars twice as old as the sun.
14 March 2012, 07:01 AM ET
New observations support the idea that galaxies expel gas and then suck it back in to create baby stars.
14 March 2012, 07:01 AM ET
A new survey of distant galaxies provides new clues about how these cosmic objects evolved.
08 March 2012, 11:15 AM ET
This cool space wallpaper shows a massive, young stellar grouping, called R136, is only a few million years old and resides in the 30 Doradus Nebula, a turbulent star-birth region in the Large Magellanic Cloud, a satellite galaxy of the Milky Way.
07 March 2012, 06:01 AM ET
The Hercules cluster is unlike many other neighboring galaxy groups.
05 March 2012, 04:14 PM ET
This stunning space wallpaper reveals the natural-color image of the galaxies was taken with NASA's Hubble Space Telescope and with the Canada-France-Hawaii Telescope in Hawaii.
01 March 2012, 04:41 PM ET
Infrared observations of the Orion nebula show young stars as they mature into adulthood.
29 February 2012, 04:51 PM ET
Stars make their own light, but not planets.
28 February 2012, 03:33 PM ET
These outflows could shape the growth of black holes and dictate star formation in their host galaxies.
24 February 2012, 09:26 AM ET
This mind-bending look at our day and night sky – including some auroras – was cut together by Randy Halverson (Dakotalapse.com). The score was composed by Bear McCreary (Battlestar Galactica, The Walking Dead, Eureka, etc.).
24 February 2012, 06:08 AM ET
The galaxies are said to be in a smooth, curved line making them appear to be connected in a chain.
23 February 2012, 01:07 PM ET
The extremely bright X-ray source in the Andromeda galaxy was first detected in late 2009.
08 February 2012, 06:01 AM ET
The Carina nebula is home to several of the brightest and most massive known stars.
03 February 2012, 07:00 AM ET
A galaxy similar to our own Milky Way is the subject of Hubble's latest portrait.
02 February 2012, 02:01 PM ET
Twirling stars called pulsars may blast material out into space to break their spins.
02 February 2012, 10:01 AM ET
The planet is located in the "sweet spot" of its parent star's habitable zone.
01 February 2012, 07:00 AM ET
The spectacular new image was captured by one of the telescopes at the La Silla Observatory in Chile.
26 January 2012, 07:00 AM ET
New types of variable stars were discovered from old photographic plates.
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.