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.
10 November 2011, 01:05 PM ET
Zoom into the Hubble GOODS South Deep (GSD) field, observers see "extreme emission line galaxies." GOODS combines deep observations from Spitzer, Hubble, Chandra, Herschel and XMM-Newton.
10 November 2011, 09:39 AM ET
The 69 tiny, ancient galaxies are forming stars much faster than expected.
09 November 2011, 12:24 PM ET
Mars pays a visit to the brightest star in the constellation Leo tonight.
03 November 2011, 02:49 PM ET
All the pulsars – with the exception of one found by the Fermi Gamma-Ray Telescope – are a billion years old or more. A recent discovery has found one that is only 25 million years old and is still packing a lot of pulsing gamma-ray punch.
02 November 2011, 07:01 AM ET
Two early galaxies were found to contain more heavier chemical elements than was previously thought possible.
01 November 2011, 01:16 PM ET
Physicist Brian Greene chats with SPACE.com about his upcoming TV series.
31 October 2011, 02:51 PM ET
Strange clouds of dust near some supermassive black holes could come from smashed planets and asteroids.
26 October 2011, 01:01 PM ET
Dust that is commonly found throughout the universe could be produced naturally by stars.
24 October 2011, 02:01 PM ET
Astronomers have solved the mystery of how the first documented supernova occurred.
24 October 2011, 10:43 AM ET
The night sky above the 2600-metre-high Cerro Paranal in the Atacama Desert in Chile is dark and clear in this space wallpaper.
19 October 2011, 12:27 PM ET
The first image of a sun-like star that's surrounded by spiral-arms makes scientists think that planets lurking within are the cause. Such worlds could space-scape gas and dust into arms, rings and lanes.
19 October 2011, 06:01 AM ET
The European VISTA telescope has found two clusters of ancient stars in our Milky Way galaxy.
12 October 2011, 12:37 PM ET
See 65 stunning photos of galaxies across the universe.
12 October 2011, 06:01 AM ET
Astronomers have created a timeline for the age of re-ionization in the universe for the first time.
11 October 2011, 02:28 AM ET
Skywatchers shoot remarkable image of Earth’s gibbous moon captured in the hands of an observer holding tissue paper.
07 October 2011, 07:26 AM ET
French skywatching enthusiast Thierry Legault captured a brilliant deep-sky image of the Pinwheel Galaxy.
29 September 2011, 08:39 AM ET
With its high powered eyes directed toward dwarf irregular galaxy Holmberg II, the space telescope viewed the remnants of a supernova explosion whose shock waves created glowing bubble-like gas features.
28 September 2011, 06:00 AM ET
Europe's Very Large Telescope is taking the most important meal of the day very seriously: Scoping out the constellation Scorpius, the VLT has found a yellow hypergiant star and its double shell of dust. It resembles a fried egg.
16 September 2011, 09:28 AM ET
Astrophysicists explain how their space-based observatory collected the data that allowed them to reveal the twin sun-orbiting planet Kepler 16-b. It has been nicknamed "Tatooine" after the Star Wars saga's double sun planet.
13 September 2011, 04:03 PM ET
The Chandra Observatory has witnessed the CoRoT-2a star blasting x-rays at its poor neighbor at a rate hundred's of thousands of times more powerful than Earth receives from the Sun. The planet is dissipating 5 million tons of matter every second.
12 September 2011, 12:01 PM ET
Astronomers using Europe's HARPS telescope have discovered 50 new exoplanets orbiting nearby stars - including these 16 super-Earths, one of which lies within its star's habitable zone.
07 September 2011, 03:30 PM ET
Find out why stars twinkle, how it effects Earth-based skywatching, past and present laser technologies used to counteract the effect and the future implementation of that tech on Europe's Extremely Large Telescope.
31 August 2011, 01:01 PM ET
The find could help astronomers understand galaxy and black hole mergers.
19 August 2011, 09:28 PM ET
Check out a galaxy that glows green from within, a big splash at NASA and Stephen Colbert goes nuts for space.
17 August 2011, 01:01 PM ET
A massive "blob" of glowing gas is illuminated by bright galaxies inside, according to a new study.
13 August 2011, 02:49 AM ET
Check out a bright solar flare, colliding galaxies, a meteor shower and a stunning view of New York.
12 August 2011, 09:09 AM ET
A giant cosmic necklace glows brightly in a newly released image from the Hubble Space Telescope.
11 August 2011, 04:32 PM ET
The Chandra X-ray Observatory has captured galaxies VV 340 North and VV340 South at the early stages of their merge, an interaction that will take millions of years. This cosmic punctuation mark is located about 450 million light years from Earth.
29 July 2011, 01:47 PM ET
Over 16,000 feet up in the Chilean Andes, a multi-national group is constructing a complex antenna that could revolutionize our understanding the origins of the universe.