04 August 2014, 07:00 AM ET
NASA's Mars rover Curiosity marks two years on Mars Tuesday (Aug. 5). The rover's first two years have been full of big finds, and researchers are eager to see what Curiosity finds when it scales the foothills of the towering Mount Sharp.
01 August 2014, 07:33 AM ET
NASA's next Mars rover could help humans get a foothold on the Red Planet.
31 July 2014, 03:24 PM ET
NASA's Mars 2020 mission will send a car-size rover to the Red Planet to collect samples. See how the Mars 2020 rover will work in this Space.com infographic.
31 July 2014, 02:48 PM ET
Mars and Saturn get together with the crescent moon for a planetary 3-way on August 31st and Venus and Jupiter get together on August 18th. The Perseids Meteor Shower peaks on Aug 11-13.
31 July 2014, 02:41 PM ET
See photos and images of NASA's next Mars rover, a 1-ton robot launching toward the Red Planet in 2020.
30 July 2014, 07:29 PM ET
Space agency officials will reveal the science gear they've chosen for the rover, which will launch toward the Red Planet in 2020, on Thursday at 12 p.m. EDT. You can watch the announcement live here at Space.com, courtesy of NASA TV.
28 July 2014, 05:19 PM ET
As of Sunday (July 27), Opportunity had traveled a total of 25.01 miles on the Red Planet, NASA officials said. The record had been held by the Soviet Union's remote-controlled Lunokhod 2 rover, which covered 24.2 miles on the moon in 1973.
28 July 2014, 07:01 AM ET
The founding population of an interstellar colony should consist of 20,000 to 40,000 people, one expert says. Such a large group would possess a great deal of genetic and demographic diversity, giving the settlement the best chance of survival.
25 July 2014, 03:37 PM ET
This NASA-produced video combines a greatest hits retrospective of past spaceflight with suggestions of humans-to-asteroid and Mars missions, plus animation of a yet unbuilt heavy lift launch vehicle.
25 July 2014, 11:27 AM ET
Curiosity has just crossed out of its landing ellipse, the 12- by 4-mile(19 by 7 kilometers) zone targeted for its August 2012 touchdown and is now moving toward an increasingly challenging landscape called the Zabriskie Plateau.
22 July 2014, 07:00 AM ET
The second Hawaii Space Exploration Analog and Simulation mission, known as Hi-SEAS 2, wraps up on Friday (July 25), ending four months of simulated Red Planet exploration on Hawaii's Mauna Loa volcano.
21 July 2014, 05:05 PM ET
Actor Morgan Freeman grilled NASA astronauts on the International Space Station about how their work can get humans to Mars someday.
21 July 2014, 09:00 AM ET
A dropship quadcopter designed by the European Space Agency could be landing rovers on Mars in the future.
17 July 2014, 06:50 AM ET
On July 12, for the first time ever, Curiosity photographed sparks flying from a rock blasted by the 1-ton robot's laser-sampling instrument, known as ChemCam. You can watch a video of the laser flashes here.
16 July 2014, 11:00 AM ET
Seasonal changes in the gullies of Mars reveals that dry ice rather than flowing water is responsible for their creation.
14 July 2014, 10:30 PM ET
The Mars map, which was released Monday (July 14), was created using observations from four orbiting spacecraft over more than 16 years. It should significantly advance scientists' understanding of the Red Planet, researchers said.
14 July 2014, 04:38 PM ET
The U.S. Geological Survey compiled data from four orbiting spacecraft watching over more than 16 years to reveal the materials, events, and processes that made the present day face of Mars.
12 July 2014, 08:01 AM ET
The 1-ton Curiosity rover has now cruised out of its landing ellipse, the area — about 4 miles wide by 12 miles long (7 by 20 kilometers) — regarded as safe ground for its August 2012 touchdown within Mars' huge Gale Crater, NASA officials said.
09 July 2014, 07:32 AM ET
If there were mechanics on Mars, NASA may have taken the Curiosity rover into the shop by now. The 1-ton robot has accumulated quite a bit of wheel damage since touching down inside Gale Crater in August 2012.
07 July 2014, 02:52 PM ET
An incredibly detailed new map of Mars' southern highlands shows how profoundly liquid water sculpted the region long ago, especially two canyon systems known as Waikato Vallis and Reull Vallis.
06 July 2014, 01:01 PM ET
A colossal but glancing smashup with a roughly Earth-size planet could have stripped away much of proto-Mercury's rocky mantle, explaining why the tiny, sun-scorched world has such a huge iron core today, researchers say.
04 July 2014, 09:00 AM ET
The moon and Mars will rendezvous in the night sky Saturday, putting on a spectacular show. Some skywatchers will even see the moon blot out the Red Planet in an event known as an occultation.
02 July 2014, 04:42 PM ET
Researchers at the University of Michigan have recreated NASA Phoenix mission landing site conditions in their lab and determined that Martian salts must interact with ice to make liquid water. FULL STORY: http://goo.gl/mqEnjD
02 July 2014, 04:34 PM ET
It may seem impossible that water could flow on the frigid surface of Mars, but a new study in a simulated Red Planet environment shows that a type of salt there may melt the ice it touches.
01 July 2014, 03:25 PM ET
Pluto reaches opposition and can be seen with a medium-sized telescope and dark skies. Dwarf planet Ceres and asteroid Vesta will be quite close to one another on the night sky. But each is a tough target.
01 July 2014, 07:00 AM ET
Cosmic impacts can create novel habitats where life can flourish and preserve the remains of pre-existing life for millions of years, new research suggests.
30 June 2014, 10:29 AM ET
Saturn and Mars are visible in the evening and Venus and Mercury can be found before sunrise. At the end of the month, the annual Delta Aquarid peaks with 20 meteors per hour. -- Skywatching Guide: http://goo.gl/uETMG9
28 June 2014, 05:45 PM ET
The space agency launched its Low-Density Supersonic Decelerator test vehicle today from Hawaii, seeing how equipment designed to slow the descent of spacecraft through the Red Planet's atmosphere performs at high speeds in Mars-like conditions.
25 June 2014, 03:11 PM ET
The space agency aims to loft its Low-Density Supersonic Decelerator test vehicle Saturday from the U.S. Navy's Pacific Missile Range Facility in Hawaii. The launch window opens at 2:15 p.m. EDT; you can watch all the action here on Space.com.
24 June 2014, 07:30 AM ET
Curiosity wraps up its 687th day on Mars today (June 24), NASA officials said, meaning the 1-ton robot has completed one lap around the sun on the Red Planet.
24 June 2014, 07:00 AM ET
A student-led private mission to Mars wants to send you to the Red Planet — for just 99 cents. Time Capsule to Mars is now offering the opportunity to upload a photo to fly on its trio of 4-inch-wide Mars probes for less than a dollar.
18 June 2014, 11:32 AM ET
The 'guitar god' expresses his displeasure with the sorry state of Humanity’s reach into the cosmos. 'Satch' likens space tourism flights to bad airline experiences and muses upon transporter beam practicality.
17 June 2014, 02:17 PM ET
Angry Birds and NASA have teamed up for the second time to develop a new version of the popular game. The new iteration of the Angry Birds franchise sends players to the space agency's next cosmic target — asteroids.
17 June 2014, 07:35 AM ET
Getting astronauts to the Red Planet is the chief long-term goal of NASA's human spaceflight program, so the agency is developing many technologies to help make that happen, including a new line of prototype spacesuits called the Z-series.
16 June 2014, 07:15 AM ET
Samples scooped from the Martian atmosphere could provide scientists with their first hands-on experience with the red planet.
12 June 2014, 04:46 PM ET
The space agency was forced to scrub six launch attempts of the Mars landing technology over the past two weeks as a result of unusually poor wind conditions at the U.S. Navy's Pacific Missile Range in Kauai, Hawaii.