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Comet Siding Spring: Exciting times

Karl Battams • October 06, 2014

We're now less than two weeks away from Comet Siding Spring buzzing ridiculously close to Mars, and the excitement is building - in both good and bad ways...

Mars Exploration Rovers Update: Opportunity Gets Extension, Returns Killer Panoramas, and Roves onto Mystery Rocks

A.J.S. Rayl • October 04, 2014

While the winds of Martian spring blew through Meridiani Planum in September, Opportunity reformatted its Flash memory then continued exploring Wdowiak Ridge on the western rim of Endeavour Crater. Even though the Flash-related issues soon returned, the robot field geologist hardly seemed to notice as it sent home two spectacular panoramas, presented the scientists with a rocky Martian mystery, and delivered yet another September to remember for the mission. And that's not all.

Preparing for A-MAVEN Science!

Karl Battams • October 03, 2014

How can we use MAVEN to learn about Comet Siding Spring, passing very close by Mars this month?

Mars Orbiter Mission activates all science instruments as NASA, ISRO form joint Mars working group

Srinivas Laxman • October 01, 2014

Mars Orbiter Mission (MOM) began its science activities fully on Wednesday with all five science instruments being activated. And on Tuesday, an ISRO-NASA Mars working group was formed which will "seek to identify and implement scientific and technological goals that NASA and ISRO have in common regarding Mars exploration."

Curiosity update, sols 748-763: Driving and Drilling at Pahrump Hills

Emily Lakdawalla • September 29, 2014

The biggest news on Curiosity of late is that the rover has drilled her fourth full drill hole on Mars! Drilling happened at a site called "Confidence Hills" on sol 759. But before she did that, she took a long series of amazing photos of rock formations at Jubilee Pass, Panamint Butte, and Upheaval Dome.

Mars Orbiter Mission delivers on promise of global views of Mars

Emily Lakdawalla • September 29, 2014

Ever since I first learned about the capabilities of Mars Orbiter Mission's small payload of science instruments, I have been anticipating one type of data in particular: global color views of Mars captured in a single 2000-pixel-square frame. Just days after entering orbit, Mars Orbiter Mission has delivered on that promise.

Field Report from Mars: Sol 3790 — September 22, 2014

Larry Crumpler • September 26, 2014

After a stand-down of activities to reformat its flash memory, Opportunity has re-commenced the long climb up this high and steep segment of the Endeavour crater rim.

MAVEN returns first images of Mars' atmosphere

Emily Lakdawalla • September 24, 2014

On Sepember 22 at 02:24 UTC, Earth received word that MAVEN had ended its orbit insertion burn on time, completing its journey to Mars. Today MAVEN has released some of its very first data, taken by the Imaging Ultraviolet Spectrograph just eight hours after arrival.

45th Binghamton Geomorphology Symposium Report

Ted Stryk • September 23, 2014

The 45th Binghamton Geomorphology Symposium, usually focused on terrestrial studies, shifted this year to planetary science. Ted Stryk gives us an overview.

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.

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