26 February 2015, 01:38 PM ET
Going to Mars without setting up a colony — round-trip manned missions, in other words — would not be enough for the U.S. to reclaim its leadership in space, nor would setting up human outposts on the moon, Aldrin said.
26 February 2015, 09:40 AM ET
The Gemini Twins and a dimmer Cancer constellation make their way into the night sky in March.
24 February 2015, 10:16 PM ET
One day I imagine that humanity will be able to visit other planets in the Solar System, and venture even further to other stars, but this has always seemed very far away. That’s the reason why I applied for the Mars One mission.
24 February 2015, 06:14 PM ET
The photo, which was released today (Feb. 24), is a composite of dozens of images taken in late January by Curiosity's Mars Hand Lens Imager. The mosaic provides a great view of the "Pahrump Hills" outcrop at the base of the huge Mount Sharp.
21 February 2015, 04:46 PM ET
Europe's last cargo spacecraft came down to Earth in a fiery blaze and scientists reported seeing mysterious plumes emanating from Mars. Here are Space.com's picks for the best space stories of the week.
21 February 2015, 12:42 PM ET
From mysterious plumes on Mars to a space station made of matchsticks, don't miss these amazing space images of the week for Feb. 22, 2015.
18 February 2015, 05:14 PM ET
Mars, Venus and the moon will meet up in a particularly beautiful cosmic display Friday. If you've been watching the evening twilight sky over the past few weeks, you will have seen the brilliant planet Venus gradually moving away from the sun, setting sl
18 February 2015, 02:53 PM ET
In a Mars environment, it appears even brewing may be possible.
17 February 2015, 04:00 PM ET
Mars would not be an easy home for human colonists. See how its lower gravity, thin atmosphere and lack of a magnetic field could make it challenging for a colonist in this Space.com infographic.
17 February 2015, 04:00 PM ET
Life on Mars would be full of chilly weather, large dust storms and geological sights dwarfing anything on Earth.
17 February 2015, 12:31 PM ET
A mystery is brewing on Mars: Amateur astronomers spotted enormous plumes erupting off the Red Planet's surface, leaving scientists puzzled.
17 February 2015, 07:50 AM ET
A new study of emissions from Martian volcanoes suggests there is no activity going on right now, but researchers aren't ruling out recent eruptions.
16 February 2015, 02:28 PM ET
Mars One, which aims to land four pioneers on the Red Planet in 2025 as the vanguard of a permanent colony, has whittled its pool of astronaut candidates down to 100, organization representatives announced Monday.
13 February 2015, 07:37 AM ET
Would you die on Mars? The Guardian interviewed three people that want to do just that as part of Mars One — a privately funded one-way mission to Mars planned to launch in the 2020s.
11 February 2015, 03:30 PM ET
Opportunity has now covered 26.094 miles (41.994 kilometers) since touching down on Mars in January 2004, leaving the rover just 660 feet (200 meters) shy of the marathon milestone, NASA officials said today (Feb. 10).
11 February 2015, 01:08 PM ET
On March 18th, 1965, Alexey Leonov stepped out of his Voskhod 2 spacecraft to become the first man to complete an extra vehicular activity (EVA) in space.
11 February 2015, 07:00 AM ET
The search for life on Mars presents us with many challenges – not the least of which is microbial contamination. How do we ensure that microbes from Earth don't hitchhike all the way to the Red Planet and spread there?
10 February 2015, 03:36 PM ET
Elon Musk insists that Mars is a “long-term insurance policy” for “the light of consciousness” in the face of climate change, extinction events, and our recklessness with technology.
10 February 2015, 02:00 PM ET
In this dreamy observation, staring down on Mars' south polar icecap, a European spacecraft has captured stunning ruddy swirls frozen in Martian ice, like cinnamon sprinkles and coffee mixing with the frothy milk atop a rich cappuccino.
09 February 2015, 07:11 AM ET
A NASA rover on Mars is getting another taste of an ancient Martian mountain. The space agency's Curiosity Mars rover arrived at Mount Sharp in Gale Crater about five months ago, and since then, the 1-ton robot has drilled two samples from the tall mounta
06 February 2015, 08:44 PM ET
The icy moon Europa is perhaps the most tantalising destination in our solar system.
06 February 2015, 07:00 AM ET
All seven crewmembers, who will spend two weeks at the Mars Desert Research Station near the Utah town of Hanksville, are astronaut candidates for Mars One's Red Planet colonization effort.
05 February 2015, 04:25 PM ET
Jupiter will dazzle all night long for the entire month, and if you’re awake in the early morning hours, look for the ringed wonder, Saturn. Skywatchers will also have good opportunuties to see Mercury, Venus and Mars this month.
02 February 2015, 06:00 PM ET
Neither Opportunity nor NASA's Lunar Reconnaissance Orbiter is allocated any funds in the White House's fiscal year 2016 budget request. But that doesn't mean the missions will definitely cease operations.
30 January 2015, 07:20 AM ET
Scientists on the Curiosity team have brought into question a recent report about potential trace fossils in the Mars rover's images of the Gillespie rock outcrop.
28 January 2015, 06:20 PM ET
The stars and constellations seen from Mars would be similar to those seen from Earth, but the Red Planet's two moons would be quite a sight for Martian explorers.
28 January 2015, 07:20 AM ET
A greenhouse fire on Dec. 29 halted a simulated Red Planet mission at the Mars Society's Mars Desert Research Station in Utah.
27 January 2015, 12:06 PM ET
NASA cannot put astronauts on Mars in the 2030s under current funding, experts interviewed for an unreleased movie say.
24 January 2015, 10:40 AM ET
Engineers at NASA's Jet Propulsion Laboratory are developing a 2.2-lb. helicopter that would work in partnership with future Mars rovers.
23 January 2015, 06:52 PM ET
The NASA rover landed on the Red Planet on Jan. 25th, 2004 (Jan 24th PST). It has driven 25.9 miles since.
23 January 2015, 06:36 PM ET
The gravity and atmosphere of the Red Planet are far different than that of Earth. Helicopter design would have to be altered - NASA Jet Propulsion Laboratory Bob Balaram explains the challenges.
23 January 2015, 04:30 PM ET
NASA's Opportunity rover celebrates 11 years on Mars Saturday (Jan. 24), and the robot's handlers are marking the occasion with a gorgeous panoramic photo that Opportunity took of its Red Planet environs.
21 January 2015, 05:29 PM ET
Ashwin Vasavada has taken over the top science slot for the Curiosity Mars rover mission, and is ready to climb Mount Sharp.
16 January 2015, 09:37 AM ET
The U.K.-built Beagle 2 Mars lander went missing in December 2003 when it failed to radio home after a Christmas Day landing attempt.
16 January 2015, 09:30 AM ET
Scientists announced today (Jan. 16) that NASA's sharp-eyed Mars Reconnaissance Orbiter (MRO) has spotted Beagle 2, which was part of the European Space Agency's Mars Express mission.
16 January 2015, 09:10 AM ET
See photos revealing the United Kingdom's Beagle 2 lander on Mars. Officials lost contact with the lander before ever finding out if it made it to the Martian surface safely. NASA's Mars Reconnaissance Orbiter captured images of the lost lander.