Evidence from Curiosity Rover Shows Mars Once Had Oxygen-Rich Atmosphere

Mars' atmosphere is thin, dry and cold now, but it used to be thicker and contained a lot more oxygen. Image Credit: ESO/M. Kornmesser

Mars’ atmosphere is thin, dry, and cold now, but it used to be thicker and contained a lot more oxygen. Image Credit: ESO/M. Kornmesser

Mars’ atmosphere is thin and cold, composed primarily of carbon dioxide along with other trace gases and some water vapor. Evidence has continued to mount, however, that the rarified atmosphere […]

Opportunity Rover Moves to New Target on Steep Slope, Sees Swirling Dust Devil

View from the Opportunity rover looking downhill from the steep hillside. Part of the floor of Endeavor crater can be seen beneath the underside of one of the solar panels. Image Credit: NASA/JPL-Caltech

View from the Opportunity rover looking downhill from the steep hillside on sol 4323 (March 22, 2016). Part of the floor of Endeavour crater can be seen beneath the underside of one of the solar panels. Image Credit: NASA/JPL-Caltech

Almost, but not quite … The Opportunity rover is now driving to another area on the hillside […]

Ten Years at Mars: Mars Reconnaissance Orbiter Celebrates a Decade of Discovery

Illustration of Mars Reconnaissance Orbiter (MRO) as it entered orbit ten years ago. Image Credit: NASA/JPL

Illustration of Mars Reconnaissance Orbiter (MRO) as it entered orbit ten years ago. Image Credit: NASA/JPL

The Martian rover Opportunity has become famous for its amazing longevity, but it is not the only one; orbiting spacecraft also usually enjoy long lifespans, and today the Mars Reconnaissance Orbiter is celebrating its 10th year exploring Mars from […]

NASA Eyes May 2018 for InSight Mars Lander Launch, Pending Instrument Redesign

NASA's InSight Mars mission is now being targeted for a May 2018 launch. Image Credit: NASA/JPL-Caltech

NASA’s InSight mission to Mars is now being targeted for a May 2018 launch. Image has been cropped for publication. Image Credit: NASA/JPL-Caltech

In December, those following the Interior Exploration using Seismic Investigations, Geodesy and Heat Transport (InSight) mission, planned to launch on a trek to Mars this month aboard a ULA Atlas-V launch […]

New Study Suggests Mars' Ancient Surface Shifted and Tilted Due to True Polar Wander

A view of Mars showing the expansive Valles Marineris (center), which is the largest canyons system in the entire Solar System. Three of the four giant shield volcanoes that constitue the massive Tharsis region are seen at far left. A new study by an international team of planetary scientists has provided evidence that the formation of Tharsis had profound effects in the shaping of Mars' geomorphology and climate, ultimately tilting the surface by as much as 20 degrees relative to planet's axis of rotation. Image Credit: NASA/JPL-Caltech

A view of Mars showing the expansive Valles Marineris (center), which is the largest canyons system in the entire Solar System. Three of the four giant shield volcanoes that constitue the massive Tharsis region are seen at far left. A new study by an international team of planetary scientists has provided evidence that the […]

Kelly and Kornienko's Year-Long Mission Paves Way for Journey to Mars

With 520 cumulative days in space, and 340 days from his (almost) one-year mission aboard the International Space Station (ISS), Scott Kelly is now the national record-holder for the longest single space mission and the greatest amount of spaceflight time of any U.S. citizen. Photo Credit: NASA

With 520 cumulative days in space, and 340 days from his (almost) one-year mission aboard the International Space Station (ISS), Scott Kelly is now the national record-holder for the longest single space mission and the greatest amount of spaceflight time of any U.S. citizen. Photo Credit: NASA

For the first time in almost five […]

Opportunity Rover Begins 'Mountain Climbing' Up Steep Ridge at Endeavour Crater

Panoramic view of Knudsen Ridge. Image Credit: NASA/JPL-Caltech/Cornell/ASU/James Sorenson

Panoramic view of Knudsen Ridge, where Opportunity has been climbing a steep 30 degree slope. Image Credit: NASA/JPL-Caltech/Cornell/ASU/James Sorenson

NASA’s Curiosity rover on Mars may have been stealing the spotlight in recent years, but the other rover, Opportunity, is still going strong after 12 long years. Opportunity has survived the harsh environment and various challenges […]

NASA Shows Off Orion EM-1 Structure at KSC for Inaugural SLS Lunar Flight Test

The Orion pressure vessel for the EM-1 mission inside the Neil Armstrong Operations and Checkout Building at NASA's Kennedy Space Center in Florida. Photo Credit: Talia Landman / AmericaSpace.com

The Orion pressure vessel for the EM-1 mission currently sits upon an upgraded test stand inside Operations & Checkout Building at NASA’s Kennedy Space Center in Florida. Photo Credit: Talia Landman / AmericaSpace.com

NASA’s Orion crew module pressure vessel is secured on a test stand called “the birdcage” inside the Neil Armstrong Operations and Checkout […]

'Cauliflower' Silica Formations on Mars: Evidence of Ancient Life?

Image of "cauliflower" silica formations found by the Spirit rover in 2008 near Home Plate in Gusev crater. Do they hold clues to ancient life on Mars? Photo Credit: NASA/JPL-Caltech

Image of “cauliflower” silica formations found by the Spirit rover in 2008 near Home Plate in Gusev crater. Do they hold clues to ancient life on Mars? Photo Credit: NASA/JPL-Caltech

Was there ever life on Mars? That is one of the longest-running and most debated questions in planetary science, and while there have been […]

Super Guppy Delivers Orion EM-1 Structure to KSC for 2018 Inaugural SLS Flight

The structure of the first Orion spacecraft destined to fly atop NASA's Space Launch System (SLS) rocket in late 2018 on Exploration Mission-1 (EM-1) arrived at the agency's Kennedy Space Center (KSC) in Florida Feb. 1, 2016. Photo Credit: Alan Walters / AmericaSpace

The structure of the first Orion spacecraft destined to fly atop NASA’s Space Launch System (SLS) rocket in late 2018 on Exploration Mission-1 (EM-1) arrived at the agency’s Kennedy Space Center (KSC) in Florida Feb. 1, 2016. Photo Credit: Alan Walters / AmericaSpace

The Orion spacecraft destined to fly atop NASA’s Space Launch System […]