18 June 2013, 01:11 PM ET
It's possible that not a single known object meets the current criteria, one researcher says.
17 June 2013, 10:20 AM ET
NASA has picked its eight newest space travelers, the 2013 astronaut class, for future trips to asteroids and Mars.
13 June 2013, 07:00 AM ET
The crew module on the Orion spacecraft is designed for multiple flights.
07 June 2013, 04:10 PM ET
NASA's Space Launch System will take people farther into the solar system than ever.
07 June 2013, 03:19 AM ET
A night sky photographer shot this stunning image of Orion over mustard fields in India.
16 May 2013, 04:50 PM ET
This dramatic space wallpaper reveals cosmic clouds in the constellation of Orion showing what seems to be a fiery ribbon in the sky.
14 May 2013, 06:30 AM ET
Skylab II could be the United States' first deep-space station.
06 May 2013, 03:25 PM ET
This space wallpaper reveals a stunning view from ESA’s Herschel space observatory of the iconic Horsehead Nebula in the context of its surroundings.
02 May 2013, 11:58 AM ET
Astrophotographer Tamas Ladanyi took this image of Orion over an ancient castle in Hungary.
12 April 2013, 05:00 AM ET
The Space Launch System (SLS) rocket is running ahead of schedule and on budget
11 April 2013, 03:00 PM ET
This cool space wallpaper is a composite color image of the Herschel PACS 70, 100, 160 micron-wavelength images of Betelgeuse.
10 April 2013, 06:08 PM ET
The mission is in its early stages, but some details are already emerging.
10 April 2013, 05:38 PM ET
See reactions to NASA's 2014 budget from space agency, industry and science luminaries.
10 April 2013, 05:15 PM ET
The ambitious plan would have the goal of moving a small asteroid to a new orbit near the Earth by the year 2025.
10 April 2013, 04:24 PM ET
The energy source that fuels the sun and other stars could propel rockets that take humans to other planets.
10 April 2013, 03:21 PM ET
NASA's 2014 budget request includes $105 million to kick-start the agency's asteroid capture mission.
10 April 2013, 01:42 PM ET
NASA's Charles Bolden released a statement about the budget today.
10 April 2013, 11:46 AM ET
NASA's 2014 budget request would fund the agency below 2012 levels, at about $17.7 billion.
10 April 2013, 07:00 AM ET
NASA is expected to receive $100 million for an ambitious asteroid-retrieval mission.
10 April 2013, 07:00 AM ET
The mission is challenging but achievable, experts say.
05 April 2013, 05:16 PM ET
The money should jump-start an ambitious program to send astronauts to a space rock in 2021.
02 April 2013, 07:30 AM ET
The Skylab II outpost would be a modified hydrogen tank from NASA's Space Launch System rocket.
31 March 2013, 07:29 AM ET
NASA new Space Launch System is a huge rocket for manned deep space flights.
13 March 2013, 11:02 AM ET
A close conjunction of the moon and Jupiter is sure to dazzle stargazers this week.
11 March 2013, 01:42 PM ET
A new NASA challenge tasks students with protecting astronauts and hardware from deep-space radiation.
12 February 2013, 11:46 AM ET
The first Orion capsule could launch in 2014.
05 February 2013, 02:54 PM ET
The Atacama Pathfinder Experiment (APEX) telescope in Chile shows a beautiful view of clouds of cosmic dust in the region of Orion in this amazing desktop wallpaper.
05 February 2013, 02:00 PM ET
Night sky photographers Bob and Janice Fera snapped this spectacular view Running Man Nebula.
05 February 2013, 07:00 AM ET
No asteroid target has yet been selected, making planning difficult.
01 February 2013, 11:37 AM ET
Stargazers will be able to see a clear view of the Orion and Canis Major Constellations this month, and the many bright stars they contain.
22 January 2013, 06:45 PM ET
The Atacama Pathfinder Experiment (APEX) telescope in
Chile, while examining the star-forming region in Orion, detected a dark zone where an active star has excavated a cavity in surrounding gas and dust.
22 January 2013, 12:30 AM ET
The delicate nebula NGC 1788, located in a dark and often neglected corner of the Orion constellation, is revealed in this space wallpaper.
21 January 2013, 11:31 AM ET
Under President Barack Obama, NASA is following a bold mission to send astronauts to an asteroid, and then to Mars.
20 January 2013, 03:19 PM ET
See amazing photos of NASA's new Orion space capsule for deep-space missions to an asteroid, the moon or even Mars.
19 January 2013, 10:35 AM ET
The robotic "hedgehogs" could ride the Phobos Surveyor spacecraft to Mars in a few decades.
17 January 2013, 10:20 AM ET
European space officials are seeking ideas to help develop a mission to knock an asteroid off its course.