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.
19 January 2012, 06:01 AM ET
The new image shows the Helix Nebula, an odd structure 700 light-years from Earth.
19 January 2012, 05:57 AM ET
Europe's Vista Telescope has revealed the nebula in stunning infrared detail bringing to life the visible imagery provided by their MPG/ESO 2.2-metre telescope. Strands of cold nebular gas and a vibrant background of stars/galaxies can now be seen.
18 January 2012, 05:05 PM ET
A network of radio telescopes could provide a picture of our galaxy's central black hole.
15 January 2012, 02:00 PM ET
Saturn, the moon and the star Spica will form a triangle in the night sky.
13 January 2012, 07:00 AM ET
Several different instruments watched the dramatic event unfold.
11 January 2012, 04:37 PM ET
Planets around stars are the rule rather than the exception in this space wallpaper.
11 January 2012, 01:01 PM ET
Astronomers have solved the puzzle of the companion that, along with a white dwarf, causes a Type 1a supernova.
10 January 2012, 12:52 PM ET
The five-galaxy protocluster is 13.1 billion light-years away.
10 January 2012, 10:14 AM ET
Milky Way Galaxy's Past Revealed Through New Star Census
20 December 2011, 01:03 PM ET
NASA's Kepler mission has detected two worlds, one slightly smaller and one almost the same size as Earth. This is the first time that Earth-sized planets have been confirmed orbiting another star.
15 December 2011, 01:19 PM ET
The bipolar star-forming region, called Sharpless 2-106, or S106 for short, looks like a soaring, celestial snow angel in this cool space wallpaper.
15 December 2011, 09:01 AM ET
The S106 nebula contains vast clouds of gas that resemble outstretched wings.
15 December 2011, 08:57 AM ET
Now in its final stages of formation, a star named S106 IR is disrupting and illuminating nearby gas and dust clouds in a shape resembling a snow angel. The Hubble Space Telescopes Wide Field Camera 3 captured the image.
15 December 2011, 06:01 AM ET
A European telescope has snapped a stunning photo of the spiral galaxy NGC 253.
15 December 2011, 06:00 AM ET
Europe's VLT Survey Telescope has snapped a brilliant image of galaxy NGC 253. Located about eleven and a half million light-years away in the constellation Sculptor, it is one of the brightest galaxies in the night sky visible with binoculars.
08 December 2011, 07:00 AM ET
A cluster of supermassive stars within a surrounding shell of gas resembles a dragonfish.
07 December 2011, 01:01 PM ET
Seismic shivers inside stars reveal their innards are spinning surprisingly fast.
07 December 2011, 12:57 PM ET
More than 5 times larger than our Sun, a red giant's core rotates 10 times faster than its surface. This time-lapsed animation shows an entire years rotation in 60 seconds.
07 December 2011, 06:01 AM ET
New images show a vampire star stealing material from its larger companion.
06 December 2011, 02:57 PM ET
Astronomers studied the young star B275 in the Omega Nebula.
05 December 2011, 01:06 PM ET
An International team of astronomers have come across two massive black holes - 10 billion times larger than the sun. Dunlap Institute for Astronomy and Astrophysics professor James Graham and Nicholas McConnell explain the discovery.
05 December 2011, 11:50 AM ET
The massive star lies approximately 160,000 light-years away from Earth.
05 December 2011, 07:00 AM ET
Astronomers have found two new star streams coming from a nearby dwarf galaxy.
01 December 2011, 04:46 PM ET
As a dwarf galaxy, in this case Sagittarius, falls into bigger galaxies (Milky Way), it has been known that tails of stars are pulled out of the dwarf by gargantuan tidal force. Astronomers have discovered 4 such streams emanating from Sagittarius.
30 November 2011, 04:35 PM ET
Astronomers studied 17 'abnormal' stars in our galaxy that are unusually rich in heavy chemical elements.
29 November 2011, 04:32 PM ET
The new findings cast doubt on potential detections of dark matter that were previously reported.
29 November 2011, 12:45 PM ET
The Fermi Gamma-Ray Space Telescope has detected intense radiation emitted from Cygnus X system stars that are forty times larger than our Sun. This data is giving astronomers a never before seen look at this amazing stellar nursery.
24 November 2011, 02:01 PM ET
The origins of cosmic rays have been a mystery to scientists.
18 November 2011, 05:03 PM ET
A celestial triangle made up of the moon, Mars and Regulus can be seen in the sky early Saturday morning.
16 November 2011, 07:01 AM ET
The Carina nebula's cold dusty clouds are host to some of the most massive stars in our galaxy.
15 November 2011, 03:38 PM ET
The Milky Way and its neighbor, the Andromeda galaxy, seem to be slowing down their rates of star formation.
11 November 2011, 01:20 PM ET
Properties of asteroid Lutetia have been found to be similar to the original material that formed the Earth. The animation depicts what is thought to have caused its drastic change in orbit to now reside in the asteroid belt between Mars and Jupiter.
10 November 2011, 02:01 PM ET
Astronomers were surprised to find no traces of heavy elements in these primordial gas clouds.
10 November 2011, 02:01 PM ET
The universe's first stars were not as massive as previous theoretical models predicted.