30 July 2015, 07:00 AM ET
NASA’s Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft and India's Mangalyaan probe both began circling the Red Planet last September, bringing the total number of operational Mars orbiters to five — the most ever.
29 July 2015, 07:00 AM ET
Researchers are making strides on a radio telescope array that would be unfurled on the farside of the moon by an unmanned rover operated by astronauts hovering nearby at a gravitationally stable point in space.
28 July 2015, 07:30 AM ET
Measurements by Curiosity's rock-zapping ChemCam laser and another instrument revealed that a chunk of bedrock dubbed Elk contains high levels of silica and thus is a good candidate to preserve ancient organic molecules, if any exist in the area.
27 July 2015, 07:31 AM ET
An Arctic crater holds promise for figuring out how to spot something interesting on the moon or Mars, an astronaut says.
16 July 2015, 08:26 AM ET
NASA's Mars rover Curiosity has detected Red Planet rocks similar to Earth's oldest continental crust. The discovery suggests that ancient Mars may have been more similar to ancient Earth than previously thought, researchers said.
14 July 2015, 05:00 AM ET
The New Horizons probe's epic flyby of Pluto today (July 14) comes on a very special date in the history of space exploration: Exactly 50 years ago today, NASA's Mariner 4 spacecraft made the first flyby of Mars.
13 July 2015, 06:00 AM ET
The New Horizons probe's flyby of Pluto on Tuesday (July 14) will wrap up the initial reconnaissance of the solar system, an endeavor that began more than 50 years ago.
12 July 2015, 02:47 AM ET
NASA's New Horizons probe captured amazing images of Pluto, scientists revealed details about a proposed superpowerful space telescope and NASA announced its first four commercial-crew astronauts. Here are Space.com's top stories of the week.
07 July 2015, 07:30 AM ET
Mars may appear to be dry and desolate, but the Red Planet can be surprisingly humid — perhaps humid enough to support life, some scientists say.
06 July 2015, 02:00 PM ET
NASA's Mars rover Curiosity faces ongoing wheel wear and tear as it continues its trek across the rock-strewn Red Planet. Mission engineers are watching the wheels turn, keeping an eye on the dings and cracks that have begun to appear.
01 July 2015, 12:14 PM ET
NASA researchers are developing a glider, called Preliminary Research Aerodynamic Design to Land on Mars (Prandtl-m), for possible inclusion on a Mars rover mission in the 2022-2024 time frame.
30 June 2015, 01:01 PM ET
The European Space Agency’s ExoMars Rover will drill up to 2 meters (6 ft. 7 in.) into the surface; previous missions have only penetrated 5 centimeters (2 in.).
30 June 2015, 07:00 AM ET
The first living being sent to Mars by humans may not be some lucky astronaut, or even a monkey, but a microorganism like cyanobacteria, sent there to create oxygen for human explorers.
30 June 2015, 07:00 AM ET
Observations by NASA's MAVEN Mars orbiter suggest that shooting stars lit up the Red Planet's skies after the close flyby of Comet Siding Spring this past October.
26 June 2015, 12:09 PM ET
Barren wastelands are not as barren as they first appear.
25 June 2015, 06:55 PM ET
The next couple of decades could see astronauts go to many places: an asteroid, the moon, even Mars. But the current spacesuits used on the International Space Station will likely need replacing to get those exploration jobs done.
25 June 2015, 04:23 PM ET
The space agency will hold a workshop in Houston this October to kick off serious discussions about possible landing sites for NASA's first manned mission to the Red Planet, which the agency aims to launch by the mid- to late 2030s.
25 June 2015, 07:00 AM ET
The extreme environments of Earth could serve as a time machine to Mars' past, showing us how microbial life could have coped with the changes on the red planet.
24 June 2015, 05:00 PM ET
On the surface of Mars, researchers have identified deposits of impact glass created in meteorite collisions, which could potentially hold signatures of life.
24 June 2015, 07:00 AM ET
While previous research had confirmed the presence of beautiful "southern lights" on Mars, the new study predicts for the first time that the auroras of the Red Planet may be visible to the human eye.
23 June 2015, 07:05 PM ET
Astromice are helping people chart the course to Mars, and revealing that voyage's risks.
23 June 2015, 07:00 AM ET
During its 13.5 years in orbit, Mars Odyssey has spotted the first evidence of water ice on Mars, mapped the entire Red Planet surface in vivid detail, and coordinated the Spirit, Opportunity and Curiosity rovers' communications with Earth.
21 June 2015, 11:33 AM ET
Crashed comet lander Philae phones home. A dead satellite falls to Earth. Mars shows both methane-laced meteorites and a possibly icy past, and the moon's dust gets a source in the best of this week's space news.
19 June 2015, 06:59 AM ET
It's New Year's Day on the Red Planet today and NASA is celebrating in style with an epic three-day party in Mars itself … Mars, Pennsylvania, that is.
18 June 2015, 06:40 AM ET
Ancient Mars could have looked more like an icy snowball than the warmer, wetter planet that many researchers have suggested, according to a new study.
17 June 2015, 04:00 PM ET
The space-funding company Uwingu is offering a deal: Name a Red Planet crater between now and Father's Day (June 21) and receive a decorative certificate, either a downloadable digital version or a printed and framed one.
16 June 2015, 11:01 AM ET
Methane, a potential sign of primitive life, has been found in meteorites from Mars, adding weight to the idea that life could live off methane on the Red Planet, researchers say.
09 June 2015, 04:10 PM ET
The 100-foot-wide parachute unfurled well and apparently inflated fully, or nearly fully, Monday before being ruptured by the fast-rushing air during the second flight test of NASA's Low-Density Supersonic Decelerator project.
08 June 2015, 01:49 PM ET
The space agency's Low-Density Supersonic Decelerator (LDSD) test vehicle launched today (June 8) from the Pacific Missile Range Facility on the Hawaiian island of Kauai at 1:45 p.m. EDT (1745 GMT; 7:45 a.m. local time in Hawaii).
08 June 2015, 01:08 PM ET
The first official trailer for Ridley Scott's "The Martian" was released today (June 8), and it's a doozy, packing gorgeous vistas of the Red Planet, intricately rendered spaceships and some laughs into three dramatic minutes.
07 June 2015, 10:00 AM ET
Scientists announced surprising discoveries about Pluto's moons, a spacecraft beamed home amazing images taken from a comet's surface, and the United Arab Emirates outlined its bold Mars plans. Here's a look at Space.com's top stories of the week.
05 June 2015, 12:45 PM ET
The United Arab Emirates' UAE Space Agency is aiming to launch its first mission to Mars by 2021, and has unveiled a full strategy for space exploration.
05 June 2015, 11:20 AM ET
Engineers are looking to automate some of the simple decision-making steps undertaken by Mars rovers and orbiters, which could dramatically improve the science they are able to perform in the search for habitable environments.
05 June 2015, 07:50 AM ET
From June 7 through June 21, Mars will be behind the sun from Earth's perspective. This geometry makes radio communications between the two planets difficult, so engineers won't send commands to NASA's Mars spacecraft during this stretch.
04 June 2015, 07:00 AM ET
NASA could land astronauts on the Red Planet by 2039 without breaking the bank, provided the space agency takes a stepwise approach that includes a manned 2033 trip to the Mars moon Phobos, according to the research.
03 June 2015, 07:38 AM ET
The space agency's Low-Density Supersonic Decelerator test vehicle is scheduled to launch from the Hawaiian island of Kauai no earlier than 1:30 p.m. EDT on Monday (June 8), borne aloft by a giant balloon. You can watch the test live here at Space.com.