Articles

A.J.S. Rayl

After setting the new off-Earth rover distance record in July, Opportunity roved on in August, driving south along the eastern edge of Endeavour Crater's western rim to Wdowiak Ridge on its journey to the next big destination, Marathon Valley.

Emily Lakdawalla

The Mars gremlins really had it in for Curiosity this month. A computer glitch and slippery sand conspired to delay the rover's progress toward Mount Sharp. And shifting rocks proved unsafe for drilling. The rover will continue driving toward Mount Sharp, departing Bonanza King without drilling, skirting Hidden Valley along a plateau to its north.

Mark Lemmon

On October 19, the Mars rovers — like their orbiting cousins — will become comet flyby missions. Comet C/2013 A1 (Siding Spring) will pass within 140,000 km of Mars.

Emily Lakdawalla

Now that a Tiger Team has assessed the nature and causes of damage to Curiosity's wheels, I can finally answer your frequently-asked questions about what wheel damage means for the mission, and why it wasn't anticipated.

Bill Dunford

The latest snaphots from the

Larry Crumpler

Opportunity just completed its first drives upslope on its long journey toward the crest of the highest rim segment of Endeavour crater, “Cape Tribulation.” Larry Crumpler gives us an update on what to expect next from the little rover that could.

Emily Lakdawalla

Now that we have reasonable confidence that our Mars orbiters will be safe from the close passage of comet Siding Spring, we are free to be excited about the opportunity that the encounter represents. At a community workshop on August 11, representatives from Mars missions shared their plans for great comet science.

A.J.S. Rayl

It's official: Opportunity has traveled farther and lived longer than any other vehicle on another planet, driving to a place in history with an out-of-this-world distinction no one even imagined when the robot field geologist left Earth 11 years ago.

Van Kane

Van Kane gives us a tour of the instruments selected for the Mars 2020 rover.

Karl Battams

On October 19, 2014, Comet Siding Spring is going to have an extremely close encounter with the planet Mars. The bottom line: it seems most likely that our Martian spacecraft will be absolutely fine.

Larry Crumpler

Larry Crumpler updates us on the Opportunity rover, which now holds the distance record for a rover on another planet and is about to climb up its highest crater rim segment yet.

Casey Dreier

Seven science instruments will help the Mars 2020 rover identify biosignatures and understand the history of the rocks it encounters on the surface of the red planet.

Bruce Betts

The Planetary Society has been selected as an education outreach partner on the just-selected NASA Mars 2020 Mastcam-Z instrument, led by Jim Bell, Planetary Society Board president and Arizona State University professor.

Valerie Fox

Valerie Fox reports from the 8th International Conference on Mars on the habitability of the Red Planet.

Abigail Fraeman

One of the hot topics of the 8th International Conference on Mars was the nature of Mars' ancient past. Abigail Fraeman reports on our updated view of whether Mars was ever warm and wet.

Emily Lakdawalla

For the last four weeks, the name of the game for Curiosity has been driving. But these weeks of driving have been more challenging than they used to be.

Bill Dunford

A single day's observations take us from orbital overviews all the way down to ground truth.

Van Kane

Several announcements for proposed missions to Mars and on the planning for a NASA return to Europa that highlight the contrasts in planning missions for these two high priority destinations.

A.J.S. Rayl

Opportunity got off to a bumpy start in June, but the Mars Exploration Rover (MER) mission pressed on, continuing the exploration of Murray Ridge at the western rim of Endeavour Crater.

Larry Crumpler

Opportunity has left the winter haven and is still driving south along the rim of Endeavour crater, currently exploring an outcrop a few meters from crater rim.