17 January 2013, 07:00 AM ET
There are good scientific and ethical reasons to protect parts of Mars and other celestial bodies, advocates say.
15 January 2013, 05:05 PM ET
Whatever it is, it's not alive, scientists say.
15 January 2013, 02:59 PM ET
The rover should start drilling within two weeks or so, scientists say.
10 January 2013, 10:50 AM ET
Scientists have discovered strange magnetic ropes hundreds of miles long above the poles of Venus.
09 January 2013, 07:00 AM ET
Comet ISON could put on an amazing show when it passes close to the sun late this year.
08 January 2013, 11:56 AM ET
Mars One has released its basic astronaut requirements.
08 January 2013, 07:00 AM ET
The record-setting Mars500 mission locked six men in a mock spaceship for 520 days.
07 January 2013, 11:58 PM ET
The rover's Dust Removal Tool clears away the ubiquitous Red Planet dust.
07 January 2013, 06:00 AM ET
A proposed $2.6 billion asteroid-retrieval mission could help jump-start manned exploration of deep space, proponents say.
03 January 2013, 02:00 PM ET
A Martian meteorite that landed in Morocco in 2011 is revealing the Red Planet's secrets
03 January 2013, 07:00 AM ET
NASA's Spirit rover landed nine years ago today, and its twin Opportunity followed three weeks later.
03 January 2013, 06:00 AM ET
A brief rundown of the intrepid spacecraft currently sending data home from beyond Earth orbit.
02 January 2013, 01:02 PM ET
Earth has been sending probes to Mars for decades, but some missions stand above the rest.
31 December 2012, 07:00 AM ET
Experts weigh in on NASA's direction and its ultimate goals of sending astronauts into deep space.
27 December 2012, 05:06 PM ET
The latest self-portrait of Curiosity on Mars is an eye-popping Martian sight.
27 December 2012, 11:23 AM ET
The Curiosity rover searched a shallow depression known as “Yellowknife Bay” to find a new rock to chemically analyze
20 December 2012, 03:22 PM ET
Being developed for missions in 2015 and beyond, the Z-1 could be used for exploring the moon and Mars.
20 December 2012, 07:00 AM ET
Radiation risk currently limits space journeys to about one year, experts say.
19 December 2012, 01:01 PM ET
Adam Steltzner led the team that landed Curiosity on Mars this past August.
13 December 2012, 04:20 PM ET
Researchers are developing a mission that would assess the habitability of the icy satellite.
12 December 2012, 07:01 AM ET
The six-wheeled robot is depicted in MAD's venerable fold-in feature.
10 December 2012, 02:33 PM ET
Engineers installed a potential fix shortly before the rover launched last November.
06 December 2012, 05:20 PM ET
A European spacecraft orbiting Mars has snapped wintry-looking pictures of a mountain range on the Red Planet's southern highlands.
05 December 2012, 02:20 PM ET
The findings should shed light on the evolution of the moon and the solar system's rocky planets.
05 December 2012, 07:00 AM ET
Some scientists want the 2020 rover mission to collect pieces of Mars for eventual return to Earth.
05 December 2012, 07:00 AM ET
NASA will keep running Curiosity and its other Mars assets as long as they're scientifically viable.
04 December 2012, 07:31 PM ET
NASA will launch a new Mars science rover with new tools to study the Red Planet. Former astronaut and associate administrator of NASA's Science Mission Directorate John Grunsfeld outlines the next 8 years of Mars exploration.
04 December 2012, 04:32 PM ET
NASA officials announced a plan to send another roving vehicle to Mars within this decade.
04 December 2012, 03:36 PM ET
Opportunity has made its way to clay-bearing deposits on the Red Planet.
04 December 2012, 01:01 PM ET
The rover's chief scientist was just excited about Curiosity's mission, and thrilled that one of its key instruments was working flawlessly.
04 December 2012, 12:40 PM ET
Engineers at Washington State University are using moon-like material supplied by NASA to print 3-D objects that can be used on the Moon and elsewhere in Space.
04 December 2012, 12:01 PM ET
NASA's goal should be to pioneer the solar system, says a new report by the Space Foundation.
04 December 2012, 10:51 AM ET
Mars explorers could spend nearly two years on the Red Planet without receiving a worryingly high dose.
03 December 2012, 12:58 PM ET
Soil analysis on Mars by the roving laboratory has delivered a detection of simple organic compounds. Further review will determine if it is actually from Mars or residuals from the rovers time on Earth and, critically, if it is the result of life.
03 December 2012, 12:00 PM ET
NASA's Curiosity rover found Martian dirt containing chlorine, water and sulfur compounds.
03 December 2012, 06:00 AM ET
The annual fall meeting of the American Geophysical Union lasts all week.