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SHARAD: Delving Deep at Mars

Bill Dunford • September 22, 2014

Some of Mars' most important secrets are hiding beneath the surface.

Comet Siding Spring Mars encounter: One Mars Express plan becomes two

ESA Mars Express Team • September 17, 2014

The Mars Express Flight Control Team at ESOC have been actively preparing for the flyby of comet C/2013 A1/Siding Spring on October 19. Initial estimates gave the possibility that Mars Express might be hit by 2 or 3 high-speed particles. Happily, additional observations by ground and space telescopes have shown the risk to be much lower – and perhaps even as low as zero. In today's blog post, the team explain how this (happy!) real-life, real-time development is affecting their preparations for fly-by.

Curiosity update, sols 727-747: Beginning the "Mission to Mount Sharp"

Emily Lakdawalla • September 12, 2014

A lot has happened behind the scenes on the Curiosity mission in the last few weeks. The mission received a pretty negative review from a panel convened to assess the relative quality of seven different proposed extended planetary science missions. Then, just a week later, the mission announced big news: they have arrived at Mount Sharp.

Planetary Science Gets Its Day in Congress

Casey Dreier • September 09, 2014

Watch Planetary Society President Jim Bell testify before a congressional subcommittee on Wednesday, September 10th.

So Close and Yet So Far: Why isn't Siding Spring going to sandblast Mars?

Tony Farnham • September 09, 2014

Comet Siding Spring is going to make a very close approach to Mars in October. Any comet dust that reaches Mars has the potential to inflict significant damage on the spacecraft orbiting the planet. As it turns out, however, Mars and its orbiters are likely to see very few, if any, impacts. Why?

Mars Exploration Rovers Update: Opportunity Suffers Unwanted Computer Reboots, Hunkers Down for Reformat

A.J.S. Rayl • September 03, 2014

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.

Curiosity update, sols 697-726: Mars thwarts driving and drilling

Emily Lakdawalla • August 22, 2014

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.

Comet Flyby Missions for Mars Rovers

Mark Lemmon • August 21, 2014

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.

Curiosity wheel damage: The problem and solutions

Emily Lakdawalla • August 19, 2014

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.

New Postcards from Mars

Bill Dunford • August 18, 2014

The latest snaphots from the "Mars Webcam" include something special.

Field Report From Mars: Sol 3753 – August 15, 2014

Larry Crumpler • August 18, 2014

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.

Mars orbiters plan for their October encounter with comet Siding Spring

Emily Lakdawalla • August 13, 2014

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.

Mars 2020 Instruments – A Plan for Sample Return

Van Kane • August 08, 2014

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

Mars Exploration Rovers Update: Opportunity Sets Historic Distance Record and Roves On

A.J.S. Rayl • August 08, 2014

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.

Comet Siding Spring: Risk Assessment

Karl Battams • August 07, 2014

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.

Field Report From Mars: Sol 3737 – July 30, 2014

Larry Crumpler • August 04, 2014

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.

[Updated]: NASA Selects 7 Science Instruments for its Next Mars Rover

Casey Dreier • July 31, 2014

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.

Planetary Society Selected as Mars 2020 Camera Partner

Bruce Betts • July 31, 2014

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.

NASA Announces the Suite of Science Instruments on its Next Mars Rover Today

Casey Dreier • July 31, 2014

Today marks the unveiling of the suite of science instruments that will travel to Mars to look for signs of past life and help determine samples to store for possible return to Earth. The next rover mission will launch in 2020.

8th Mars Report: Martian habitability

Valerie Fox • July 30, 2014

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

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