08 November 2011, 11:22 AM ET
The six Mars500 crew members completed their 520-day mock mission on Nov. 4.
06 November 2011, 01:51 AM ET
Orion is one of the most recognizable constellations in the sky for its likeness to a hunter with a bow and arrow.
04 November 2011, 06:01 AM ET
After a simulated 520-day journey to Mars, six volunteer astronauts have emerged from isolation.
03 November 2011, 04:01 PM ET
Houston, we have a space president.
02 November 2011, 03:10 PM ET
NASA will recycle launch equipment for its new heavy-lift rocket.
31 October 2011, 12:51 PM ET
The crew of the Mars500 project is set to "return" home this week.
27 October 2011, 03:07 PM ET
How to fly a human mission to a Near Earth Asteroid. This video was created before NASA'S Constellation program was cancelled. But it could be flown with new generation private or government vehicles.
27 October 2011, 02:00 PM ET
See amazing views of asteroid 21 Lutetia from the July 2010 flyby of Europe's Rosetta probe.
27 October 2011, 02:00 PM ET
Asteroid Lutetia is the first space rock thought to have a hot, molten metal core, scientists say.
13 October 2011, 12:02 PM ET
NASA's Spitzer Space Telescope exposes the depths of this dusty nebula with its infrared vision, showing stellar infants that are lost behind dark clouds when viewed in visible light in this cool space wallpaper.
04 October 2011, 10:53 AM ET
Final selections for NASA's next astronaut class will be made in 2013.
22 September 2011, 03:04 PM ET
The U.S. needs a way to get to low-Earth orbit as soon as possible, Neil Armstrong and Gene Cernan said.
19 September 2011, 02:41 PM ET
Pratt & Whitney Rocketdyne president Jim Maser speaks to SPACE.com about NASA's Space Launch System.
19 September 2011, 12:41 PM ET
The U.S. Senate Appropriations Committee faced tough choices in drafting the NASA spending bill.
19 September 2011, 07:00 AM ET
NASA is looking at adapting the structure for its next-generation heavy-lift rocket, the Space Launch System.
15 September 2011, 06:00 AM ET
SPACE.com asked several experts, analysts and industry members about their thoughts on NASA's Space Launch System.
14 September 2011, 05:36 PM ET
NASA's new rocket marks a switch back to liquid propellants.
14 September 2011, 04:57 PM ET
See how NASA's new mega rocket, the Space Launch System, measures up for deep space missions in this SPACE.com infographic.
14 September 2011, 04:35 PM ET
Building NASA's new SLS rocket for deep space flight in these fiscal times could be tough.
14 September 2011, 03:11 PM ET
NASA's Space Launch System will be more powerful than the Saturn 5 moon rockets, officials say.
14 September 2011, 01:30 PM ET
NASA administrator Charles Bolden announced the design for NASA's new heavy-lift rocket to take humans to an asteroid.
14 September 2011, 11:54 AM ET
This stunning space wallpaper reveals, an artist concept of SLS on the launchpad.
14 September 2011, 11:03 AM ET
Former Shuttle Cdr. Charles Bolden reveals NASA's plans for a new as the Space Launch System (SLS) – based on a heavy-lift rocket bigger than the Saturn V – that could take crews to Mars, asteroids, back to the Moon, and beyond.
14 September 2011, 10:16 AM ET
Deep space manned exploration just moved a little closer to reality with the announcement of that development is beginning on the new Space Launch System (SLS). The first developmental flight is targeted for end of 2017.
14 September 2011, 09:31 AM ET
From the mighty Saturn 5 to NASA's new Space Launch System, see how the biggest rockets on Earth compare.
13 September 2011, 03:48 PM ET
Alliant TechSystems in Utah is forging ahead with their Heavy Lift Vehicle (HLV) booster based on the cancelled, Shuttle-derived Ares rocket. ATK VP (and former Shuttle Cdr.) Charlie Precourt explains why. Producer/Editor: Steve Spaleta
12 September 2011, 04:38 PM ET
The capsule will be the first space-tested version of NASA's Multi-Purpose Crew Vehicle.
10 September 2011, 01:48 PM ET
NASA launched two gravity probes toward the moon today. Mars is next.
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.
28 July 2011, 05:53 PM ET
The subpoena orders NASA to hand over documents on the new Space Launch System heavy-lift rocket.
26 July 2011, 03:03 PM ET
Despite its huge size, the giant asteroid Pallas is only visible in telescopes this week.
22 July 2011, 06:00 AM ET
The end of the NASA's space shuttle era is also the end for thousands of workers who have spent decades working in the program.
21 July 2011, 08:00 AM ET
Atlantis will be prepped for retirement at the Kennedy Space Center Visitor Complex in Florida.
21 July 2011, 01:40 AM ET
The space shuttle program is ending, changing the day-to-day lives of many NASA employees.
19 July 2011, 02:04 PM ET
After NASA retires its space shuttles, what will happen to the agency's astronaut corps?
15 July 2011, 04:58 PM ET
SPACE.com's Tariq Malik and Elmo converse about living in space, shuttle launches, and NASA's asteroid bound future.