31 August 2010, 05:37 PM ET
Human explorers can only reach a limited number of asteroids during the next several decades.
19 August 2010, 08:13 AM ET
Astronauts aboard the International Space Station must work out 2.5 hours per day, six days a week, to stave off the worst effects of muscle atrophy.
18 August 2010, 01:16 PM ET
NASA is pushing ahead with work its new Orion spacecraft and Ares rockets despite their ambiguous status.
05 August 2010, 05:29 PM ET
A suborbital NASA rocket lit up the predawn sky above Virginia early Wednesday during a demonstration flight to test its new motor.
30 July 2010, 02:39 PM ET
NASA has added a video camera to its next Mars rover to take viewers on Earth along for a ride when it lands on the Martian surface.
01 July 2010, 11:27 AM ET
An historic Gemini-Titan rocket rolled into Houston last week to join the small collection of very large launch vehicles populating the rocket park at NASA's Johnson Space Center.
24 June 2010, 03:19 PM ET
More than 60 Congress members joined in a call to direct NASA to being building a heavy-lift rocket immediately.
11 June 2010, 12:06 PM ET
The U.S. House Science and Technology Committee has given NASA one week to flesh out cost and schedule estimates for a slimmed-down version of the Orion Crew Exploration Vehicle.
11 June 2010, 10:26 AM ET
NASA's Constellation program is facing a potential $1 billion funding shortfall in the remaining four months of the current budget year, a situation that likely will force contractors to scale back work on major elements of the program.
31 May 2010, 09:59 AM ET
Boeing is willing to build a crew capsule for NASA on a commercial fixed-price basis but is troubled by the agency's plans to continue funding development of the Orion Crew Exploration Vehicle to serve as a space station lifeboat.
27 May 2010, 11:34 AM ET
Jeff Hanley, the top manager of NASA's Constellation program, has stepped down to become associate director for strategic capabilities at JSC.
17 May 2010, 07:23 PM ET
Apollo astronauts are split over the pros and cons of NASA's new space plan. Apollo 9 veteran Rusty Schweickart thinks an asteroid mission for astronauts is a fine idea.
12 May 2010, 04:10 PM ET
Neil Armstrong, the first man to walk on the moon, blasted NASA's new plans for future space exploration Wednesday, adding that President Barack Obama was poorly advised when he canceled the space agency's previous course for U.S. human spaceflight earlie
06 May 2010, 09:03 AM ET
NASA launched a mockup of its new Orion spacecraft Thursday in test flight of the spacecraft's rocket escape system.
06 May 2010, 07:02 AM ET
NASA is testing a new launch abort system to help astronauts escape an exploding rocket. But exactly how will the system work?
03 May 2010, 06:36 PM ET
On May 6, NASA plans to test a rocket designed to pull an Orion spacecraft to safety in the event of an emergency during launch.
30 April 2010, 12:46 PM ET
Spacecraft builder Orbital Sciences Corp. warned subcontractors that funding for NASA's new Orion crew capsule will dry up today.
20 April 2010, 01:30 PM ET
When NASA's three aging space shuttles retire in September 2010, what happens next? Many museums want to know too.
18 April 2010, 04:16 AM ET
Rocket-launch industry executives, engineers and related enthusiasts at the 17th annual meeting of the Space Access Society appear ready to depend on commercial services.
16 April 2010, 07:39 PM ET
President Barack Obama set a lofty next goal this week for Americans in space: Visiting an asteroid by 2025 - a daunting mission that may carry the fate of the planet along with it.
15 April 2010, 05:42 PM ET
President Barack Obama’s space policy speech today is greeted with caution and optimism.
15 April 2010, 03:20 PM ET
President Barack Obama unveiled a sweeping new space vision for NASA and the United States Thursday, one which that aims to send astronauts to a nearby asteroid and ultimately on to Mars.
15 April 2010, 02:53 AM ET
President Barack Obama will visit NASA's Florida spaceport today to hold a much-anticipated summit on his vision for the future of America's space exploration program.
15 April 2010, 02:19 AM ET
This fact sheet reveals some of the big points of President Barack Obama's new space plan unveiled on April 15, 2010.
14 April 2010, 04:19 PM ET
Apollo astronauts Neil Armstrong, Jim Lovell, and Gene Cernan took exception with Obama's plan to cancel NASA's return-to-the-moon program, dubbed Project Constellation.
13 April 2010, 10:53 PM ET
U.S President Barack Obama will announce plans to continue development of a stripped-down version of the Orion vehicle as a lifeboat on the International Space Station.
11 April 2010, 02:16 PM ET
The new roles assigned to NASA's field centers favor facilities in states likely to lose thousands of jobs.
09 April 2010, 07:58 PM ET
NASA chief Charles Bolden unveiled new work orders for space centers across the country Thursday, assuring that new jobs and missions will come.
01 April 2010, 06:51 PM ET
Hot, young stars take center stage a new image of the Orion nebula from the Spitzer Space Telescope.
24 March 2010, 01:42 PM ET
NASA Administrator Charles Bolden again faced House representatives' questions about the agency's budget.
19 March 2010, 04:07 PM ET
More than a dozen members of the U.S. House of Representatives have asked congressional investigators to scrutinize NASA's plans to shut down its Constellation program and determine whether or not the U.S. space agency is breaking the law.
15 March 2010, 04:55 PM ET
New photos of the Mars' moon Phobos reveal the Martian satellite as a strange, potato-shaped moon, and show potential landing zones being considered for a future robotic probe.
26 February 2010, 08:42 AM ET
The thunderous roar from a space shuttle solid rocket booster reverberating and rebounding off the mountains of northern Utah was heard for the final time Thursday in one last blast of a test.
25 February 2010, 07:09 PM ET
Congress is urging caution for NASA's new space exploration plan, but criticized its lack of a defined vision and dependence on commercial ventures to fly
astronauts in space.
24 February 2010, 07:01 PM ET
NASA chief Charles Bolden told senators Wednesday that sending astronauts to Mars is still the agency's ultimate goal despite current challenges.
16 February 2010, 10:23 AM ET
The Coalition for Space Exploration thinks it is a big mistake to cut the Constellation program. Former astronaut Fred Gregory tells Miles why he thinks it is a big mistake too.