21 February 2013, 01:32 PM ET
Dennis Tito's nonprofit organization may want to launch astronauts toward the Red Planet in 2018.
20 February 2013, 05:11 PM ET
The rover drilled into rock on the Martian surface on February 8th and 20th, 2013. Samples were also transferred back to the rover for analysis. The drill was demonstrated by NASA using Curiosity's twin here on Earth.
20 February 2013, 04:20 PM ET
See photos of NASA's Mars rover Curiosity's first drilling success.
20 February 2013, 04:06 PM ET
NASA's Mars rover made a giant leap for space exploration when it drilled its first sample of Red Planet rock.
20 February 2013, 12:59 PM ET
The press conference starts at 3 p.m. EST and may discuss Curiosity's drilling work on Mars.
13 February 2013, 03:00 PM ET
The president's annual address rarely mentions NASA, spaceflight or exploration.
12 February 2013, 07:00 AM ET
NASA's budget is greater than those of all other national space agencies combined, NASA deputy chief Lori Garver said.
11 February 2013, 06:20 PM ET
The Iranian-American Bobak Ferdowsi will help highlight President Barack Obama's call for more visas for skilled immigrants in the fields of math, science and engineering.
11 February 2013, 11:09 AM ET
Find out when and where to look for the pink-looking planet.
11 February 2013, 08:20 AM ET
The closest planet to the Sun (looking pinkish because of the hues of the setting Sun) and the Red Planet will be visible for all to see in February 2013. Find out when and where to look.
10 February 2013, 04:00 PM ET
New research shows how Antarctica's bizarre Don Juan Pond stays fluid.
09 February 2013, 01:06 PM ET
The Mars rover Curiosity drilled into the rock "John Klein' to collect the Martian sample.
07 February 2013, 06:14 PM ET
Curiosity drilled about 0.8 inches (2 centimeters) into a Martian rock called John Klein.
05 February 2013, 07:00 AM ET
No asteroid target has yet been selected, making planning difficult.
04 February 2013, 01:11 PM ET
The robot pounded the rock with its arm-mounted drill but has apparently not spun the drill bit yet.
04 February 2013, 07:00 AM ET
The proposed rover must collect rock samples for return to Earth, scientists said.
01 February 2013, 02:41 PM ET
Skywatcher Ajay Talwar captures dazzling photo of Mars, Saturn and Spica over historic landmark in Delhi, India.
30 January 2013, 08:00 AM ET
The robot has been sizing up a target rock and flexing its robotic arm.
29 January 2013, 02:59 PM ET
The Dutch nonprofit Mars One aims to land four colonists on the Red Planet in 2023. Do you want to be one of them?
29 January 2013, 02:35 PM ET
Mars One will use the money to fund conceptual design studies and its astronaut selection process.
28 January 2013, 04:17 PM ET
The European Space Agency will send its Mars Express spacecraft within 36 miles of the tiny moon.
25 January 2013, 05:08 PM ET
The discovery reinforces the dynamic nature of the Martian surface.
25 January 2013, 01:27 PM ET
In Mars' polar regions, carbon dioxide freezes up to 2 feet thick. As the Sun begins to thaw the ice it turns into a gas. The gas release carries dark sand and dust, moving them down the steep sides of the dunes.
25 January 2013, 11:12 AM ET
The photos show Mars at night in visible and ultraviolet light.
24 January 2013, 07:24 AM ET
The nuclear-powered mobile science laboratory Curiosity will roll across the surface of Mars for years, searching for the conditions that may have once made Mars an abode of life.
24 January 2013, 07:12 AM ET
Distances driven by wheeled vehicles on the Moon and Mars.
24 January 2013, 07:00 AM ET
Opportunity's surface mission was originally supposed to last three months.
23 January 2013, 05:35 PM ET
The Top 10 results from NASA's long-lived Red Planet explorers.
23 January 2013, 02:23 PM ET
Mars One's leader discusses how a global reality-TV event can fund a Red Planet colonization effort.
23 January 2013, 07:00 AM ET
"The Changing Face of Mars" will premiere tonight at Caltech in Pasadena.
20 January 2013, 02:40 PM ET
McLaughlin Crater on Mars is 57 miles wide and deep enough that groundwater may have filled it in the distant past.
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, 05:09 PM ET
NASA's Mars Reconnaissance Orbiter took the crisp photo.
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.