Articles

A.J.S. Rayl

It was another September to remember for Opportunity as she cruised through the Lewis and Clark Gap and out of Marathon Valley, then hiked downslope, leading the first overland expedition of the Red Planet to Spirit Mound, a new site deep in Endeavour Crater’s rim.

Casey Dreier

SpaceX's plans to colonize Mars differ considerably from NASA's Journey to Mars ambitions. But direct comparison is difficult. SpaceX is able to wipe the slate clean and start fresh with a bold new approach to humans in space. NASA has no such luxury, and must use existing pieces and people to make their goals a reality.

Larry Crumpler

Opportunity is about to leave Marathon Valley for good and head south into the next valley, marking the beginning of the current extended mission plan.

A.J.S. Rayl

Opportunity got in the groove at Endeavour Crater in August finishing the last of her science assignments in Marathon Valley.

Emily Lakdawalla

Whenever I share images from Curiosity, among the most common questions I’m asked is “what is the scale of this image?” With help from imaging enthusiast Seán Doran, I can answer that question for some of the Murray buttes.

Tanya Harrison

Martian gullies were in the spotlight last week thanks to a NASA press release stating they were

Emily Lakdawalla

Curiosity has now covered most of the flat ground that lay between the Naukluft plateau and the Murray buttes. The mission took only 11 days to complete drilling work at Marimba, despite a recurrence of a problematic short in the drill. The rover is ready to drive in among the buttes, shooting spectacular photos along the way.

A.J.S. Rayl

Despite the intensifying rancor and ugliness of the U.S. Presidential campaigns on Earth, as the spring Sun shined down on Meridiani Planum in July, all was right with the world at Endeavour Crater.

Larry Crumpler

Opportunity is finishing up its activities in Marathon Valley, getting ready to hit the road again.

Bruce Jakosky

The head of NASA's MAVEN mission, Bruce Jakosky, describes MAVEN's accomplishments during the primary mission, and previews the spacecraft's extended mission.

Bruce Betts

The Mars 2020 mission will carry microphones in its EDL package and its SuperCam instrument, which will enable us to finally hear the sounds of Mars. The Planetary Society has been trying to get microphones to Mars for 20 years and is ecstatic that these will fly.

Jason Davis

NASA's next Mars rover is rolling off the drawing board and into its final design and fabrication phase, the agency announced today, during a televised event at the Jet Propulsion Laboratory that highlighted some of the mission's technology.

A.J.S. Rayl

The Mars Exploration Rover (MER) mission entered its 150th month of surface exploration in June as Opportunity began checking off the last science investigations in Marathon Valley, and the crew on Earth looked ahead to the future past.

Emily Lakdawalla

Today ESA released ExoMars Trace Gas Orbiter's first photo of Mars, taken from a distance of 41 million kilometers. It's no more detail than you can get through a pair of a binoculars, just a little taste of what's to come.

Emily Lakdawalla

Curiosity is at a turning point in its mission to Mount Sharp, both literally and figuratively. Having drilled at three sample sites in 7 weeks, the rover took a left turn, changing its trajectory from a generally westward driving path to a southward one. It is now poised to cross the Bagnold dune field at Murray buttes.

A.J.S. Rayl

Opportunity spent the first half of May digging into an outcrop, taking dozens of panoramic images from her site on the south wall of Marathon Valley at Endeavour Crater’s western rim, and basking in the Martian spring weather.

Emily Lakdawalla

It's a great time to go outdoors and look at planets. I have three glorious planetary portraits to share today, sent to me by amateur astronomer Jean-Luc Dauvergne.

Casey Dreier

Lockheed Martin proposed a system to send humans to orbit Mars in the year 2028—a concept that shares many core values with The Planetary Society's report, Humans Orbiting Mars, we released last year.

Larry Crumpler

Opportunity arrived at its current location on sol 4345 to begin investigation of an outcrop on the crest of a ridge near the west end of Marathon Valley.

A.J.S. Rayl

Opportunity and the Mars Exploration Rovers (MER) team pressed on through the Martian winter and spent April sleuthing for clay minerals at the mission’s new site on the southern wall of Marathon Valley.