New Study Helps Answer Mystery of What Happened to Mars' Early Atmosphere

Mars used to have a thicker atmosphere and water on its surface. Image Credit: M. Kornmesser/ESO

Mars used to have a thicker atmosphere and water on its surface, but what happened to that atmosphere has been a mystery. New research may finally help answer that question. Image Credit: M. Kornmesser/ESO

The question of how Mars changed from a once wet world to the much colder and drier one we see […]

Curiosity Marks 3rd Anniversary on Mars With Amazing Science Discoveries

Self-portrait of the Curiosity over in Gale crater on Mars. Part of Mount Sharp is in the background. Image Credit: NASA/JPL-Caltech/MSSS

Self-portrait of the Curiosity over in Gale crater on Mars. Part of Mount Sharp is in the background. Image Credit: NASA/JPL-Caltech/MSSS

NASA’s Curiosity rover has just reached its third anniversary milestone on Mars, after landing in Gale crater on Aug. 5, 2012, and since then has made some incredible science discoveries, with more to come in […]

Mars Cube One: New Deep-Space CubeSats Will Travel to Mars Along With InSight Lander

Artist's conception of the MarCO CubeSats flying past Mars as the InSight lander descends to the surface. Image Credit: NASA/JPL-Caltech

Artist’s conception of the MarCO CubeSats flying past Mars as the InSight lander descends to the surface. Image Credit: NASA/JPL-Caltech

The next NASA mission to Mars, the InSight lander, will include some additional experimental technology: the first deep-space CubeSats. Two small CubeSats will fly past the planet as the lander is descending through the […]

Buried Glaciers Have Enough Ice to Cover Entire Surface of Mars, According to New Study

Image of dust-covered glaciers on Mars from the High Resolution Stereo Camera on Mars Express. The glaciers are composed of water ice. Image Credit: ESA/DLR/FU Berlin

When the topic of ice on Mars comes up, the first thing that usually comes to mind are the polar ice caps which are prominent even in small […]

MAVEN Plunges to Ascertain Ancient Atmospheric Depletion at Mars

NASA’s MAVEN spacecraft is depicted in orbit around an artistic rendition of planet Mars, which is shown in transition from its ancient, water-covered past to the cold, dry, dusty world that it has become today. Credit: NASA Story updated with additional comments from the science principal investigator

Sometimes you have to take the plunge […]

Killing Opportunity: Humans Do What Mars Can't

Mars Today! NASA’s Resilient Opportunity Rover Heading to Martian Science Treasure on Feb. 5, 2015. The rover operates just fine after 11 years on Mars, despite efforts by Earth-bound budget cutters to “Kill Opportunity.” This brand new view from atop Cape Tribulation was taken just after departing the summit and shows the down slope […]

Curiosity Gets Crystal-Rich Martian rock at ‘Mojave’ as First Drill Target of 2015

This view from the wide-angle Hazard Avoidance Camera on the front of NASA’s Curiosity Mars Rover shows the rover’s drill in position for a mini-drill test to assess whether a rock target called “Mojave” is appropriate for full-depth drilling to collect a sample. It was taken on Jan. 13, 2015. Credit: NASA/JPL-Caltech

A crystal-rich […]

The Year in Space, 2014: New Beginnings, Continuing Discoveries

LIFTOFF! NASA’s Orion spacecraft begins its debut voyage at the dawn of Friday, Dec. 5. Orion’s successful Exploration Flight Test 1 (EFT-1) capped an exciting year in spaceflight. Photo Credit: John Studwell / AmericaSpace

As 2014 winds down to its end, this year can be remembered for its new beginnings in spaceflight, encompassing the […]

Opportunity Nears Highest Ever Mountain Peak of Astounding 11-Year Martian Trek

NASA’s Opportunity Mars rover scans to the summit of Cape Tribulation less than 100 meters distant in mid-December 2014. Beyond lie caches of clay minerals. The scene shows impact breccias and thin soil cover with cobbles over bedrock. This navcam camera photo mosaic was assembled from images taken on Sol 3871, Dec. 13, 2014, […]

NASA Curiosity Rover Discovers Methane and Organics on Mars

This image illustrates possible ways methane might be added to Mars’ atmosphere (sources) and removed from the atmosphere (sinks). NASA’s Curiosity Mars rover has detected fluctuations in methane concentration in the atmosphere, implying both types of activity occur on modern Mars. Credit: NASA/JPL-Caltech/SAM-GSFC/Univ. of Michigan

NASA’s Curiosity rover has made a double dose of […]