02 May 2013, 01:16 PM ET
A brief rundown of the main techniques scientists use to find far-flung worlds.
02 May 2013, 12:33 PM ET
Tests of the mysterious skeleton, believed by some to be an alien, have so far revealed only human DNA.
02 May 2013, 11:59 AM ET
This is Part Five in an eight-part series dissecting exoplanet science today
02 May 2013, 11:58 AM ET
Astrophotographer Tamas Ladanyi took this image of Orion over an ancient castle in Hungary.
02 May 2013, 11:45 AM ET
Astrophotographer Bernard Miller captured this spectacular image of Grand Spiral Galaxy and Arp's Loop.
02 May 2013, 11:33 AM ET
Three tiny rocks with signs of melting may have come from a fireball that exploded over Russia in 1908.
02 May 2013, 11:05 AM ET
Captain Kirk and Mr. Spock return to action with a great new game hitting stores this week.
02 May 2013, 10:12 AM ET
NASA shows off its latest rover, named Grover, which will soon embark on a mission to explore Greenland's ice sheets.
02 May 2013, 09:06 AM ET
The second man to walk on the Moon, Buzz Aldrin, thinks we should set our sights on the Red Planet. Buzz's new book 'Mission to Mars' explains his vision.
02 May 2013, 06:00 AM ET
Space station astronaut Chris Hadfield snapped a picture of a small puncture wound in one of the space station's solar arrays.
02 May 2013, 06:00 AM ET
A new photo shows hot young stars shining bright in a nebula 5,000 light-years away.
01 May 2013, 06:55 PM ET
The nine-year-old robot has resumed science operations on the Red Planet.
01 May 2013, 06:03 PM ET
Dark matter emits no light, and cannot be directly observed, but scientists think that it and dark energy make up most of the mass of the universe.
01 May 2013, 05:55 PM ET
Dark energy is a mysterious quantity that makes up, along with dark matter, most of the mass of the universe.
01 May 2013, 05:26 PM ET
The video by NASA's Solar Dynamics Observatory reveals a colossal plasma wave on the sun.
01 May 2013, 05:18 PM ET
See photos that helped astronomy detectives solve the mystery of 'Stonewall' Jackson's death during the Civil War in 1863.
01 May 2013, 05:13 PM ET
A trick of the moonlight might be to blame for the friendly fire that killed Jackson.
01 May 2013, 03:52 PM ET
A small, tight cloud about 5000 light years from Earth called NGC 6559 is home to glowing red hydrogen, scattered blue gas from recently born stars and dark dusty regions.
01 May 2013, 02:54 PM ET
Asteroid (101955) 1999 RQ36 received the new moniker in a student naming contest.
01 May 2013, 02:45 PM ET
Carl Hergenrother, an observational astronomer from the University of Arizona, and Mike Nolan, a radio astronomer from the Arecibo Observatory, talk about the importance of the OSIRIS-REx sample return mission.
01 May 2013, 02:40 PM ET
This fascinating space wallpaper reveals a notional concept of a solar-electric-powered spacecraft, designed to capture a small near-Earth asteroid and relocate it safely close to the Earth-moon system so astronauts can explore it.
01 May 2013, 02:16 PM ET
This amazing space wallpaper shows a close-up view of Saturn’s north-pole hurricane, as seen by the international Cassini spacecraft. The image reveals the intricate detail of cloud formations in this dynamic feature.
01 May 2013, 01:56 PM ET
NASA's $690 million Fermi Space Telescope narrowly a head-on crash with a dead Russian satellite on April 3.
01 May 2013, 01:40 PM ET
See photos of NASA's Osiris-Rex asteroid sampling mission, which launches in 2018.
01 May 2013, 01:28 PM ET
A neat trick for efficiently folding paper could be used to fold and unfurl sails used by cubesats hunting for meteoroids