06 February 2012, 05:02 PM ET
The Mars Express probe detected strong evidence that there were large bodies of liquid water on ancient Mars.
31 January 2012, 03:15 PM ET
Saturn, Jupiter, Venus, Mars, and several prominent giant stars highlight a brilliant month in the night sky. Tonight's Sky for February 2012 shows how to see them all.
27 January 2012, 07:22 AM ET
The tragedy that killed three astronauts changed spacecraft design forever.
17 January 2012, 02:24 PM ET
Russian officials are looking into whether U.S. radar interference could have caused the Phobos-Grunt malfunction.
12 January 2012, 04:14 PM ET
Charlie Bolden was touring a Lockheed Martin facility on Jan. 10.
10 January 2012, 11:10 AM ET
NASA is looking at missions that would get humanity get out of low-Earth orbit.
03 January 2012, 03:32 PM ET
NASA wants the Orion spacecraft to make its first orbital test flight in 2014.
03 January 2012, 03:18 PM ET
This space wallpaper from NASA's Spitzer Space Telescope shows infant stars "hatching" in the head of the hunter constellation, Orion.
03 January 2012, 01:43 PM ET
See images from NASA's parachute drop tests for the new Orion deep space capsule.
27 December 2011, 04:35 PM ET
Up to 30 pieces of the 14-ton Phobos-Grunt Mars probe could reach the ground.
27 December 2011, 12:00 PM ET
The 50th anniversary of human spaceflight brought big changes.
23 December 2011, 07:00 AM ET
The images were snapped by NASA's SOFIA airborne observatory.
16 December 2011, 04:59 PM ET
The new spending bill would cut another $325 million from NASA's budget.
14 December 2011, 02:25 PM ET
The Phobos-Grunt spacecraft has been stranded in the wrong orbit since Nov. 8.
11 December 2011, 10:42 PM ET
Using his south sky video camera, amateur astronomer John Chumack captured Geminids streaking across the Winter Triangle and Orion on December 9th 2011. The best nights to watch for the shower are December 13th through the 15th.
06 December 2011, 05:01 PM ET
Pieces of the Phobos-Grunt have reported already fallen to Earth.
02 December 2011, 05:21 PM ET
The J-2X engine will power the second stage of NASA's new heavy-lifter.
02 December 2011, 04:53 PM ET
The 3D video allows viewers to fly over the asteroid Vesta's ridged surface.
02 December 2011, 04:39 PM ET
Efforts to contact the Russian Phobos-Grunt spacecraft have failed.
02 December 2011, 01:16 PM ET
The J-2X rocket engine (the new upper stage rocket engine slated for the NASA's Space Launch Systems heavy-lift rocket) was the subject of a combustion stability test on December 1, 2011. A successful firing was completed.
02 December 2011, 12:40 PM ET
The Mars Science Laboratory is on track and there's no need to adjust its trajectory at this time.
30 November 2011, 11:16 AM ET
The troubled Phobos-Grunt spacecraft remains in a low-altitude orbit above Earth.
29 November 2011, 03:27 PM ET
An up-close look at the space agency's new $500 million, 355-foot-high mobile launcher.
26 November 2011, 10:05 AM ET
NASA's Mars Science Laboratory, or Curiosity rover, launched to the Red Planet on Nov. 26, 2011.
26 November 2011, 09:55 AM ET
NASA has an ambitious plan for future Mars exploration, including one day sending humans to the Red Planet.
23 November 2011, 11:53 AM ET
NASA is expecting 13,500 people to view the launch of Mars Science Laboratory on Saturday.
20 November 2011, 08:53 AM ET
The Mars Science Laboratory rover Curiosity will now launch Saturday, Nov. 26.
18 November 2011, 02:58 PM ET
NASA's new heavy-lift rocket, the Space Launch System, will arrive on a mobile launcher weighing 6.75 million-pounds, standing 400 feet tall. Time-lapse video shows the tower's trip to its home at Kennedy Space Center's Launchpad 39B.
18 November 2011, 02:42 PM ET
A timeline of every mission sent to Mars so far.
18 November 2011, 02:37 PM ET
See the latest news, photos, videos and multimedia for NASA's Mars Science Laboratory Curiosity mission.
17 November 2011, 03:48 PM ET
NASA administrator Charles Bolden assured lawmakers that the agency is on track with its future goals.
15 November 2011, 02:53 PM ET
The space agency has opened applications for its 21st astronaut class.
10 November 2011, 02:15 PM ET
NASA's Space Launch Systems upper stage J-2X rocket engine was successfully test fired for 500 seconds on November 9th, 2011.
09 November 2011, 04:26 PM ET
The agency fired the J-2X engine for more than 8 minutes.
09 November 2011, 02:45 PM ET
NASA will conduct its first test flight of its Orion Spacecraft - named Exploration Flight Test-1 (EFT-1) in 2014. The capsule will be launched to an altitude higher than any human-rated spacecraft has reached since 1973.
08 November 2011, 11:22 AM ET
The six Mars500 crew members completed their 520-day mock mission on Nov. 4.