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Stories, updates, insights, and original analysis from The Planetary Society.

Mars Exploration Rover

Mars Exploration Rovers Update: Opportunity Begins Reconnaissance of Matijevic Hill

After spending much of October driving around and taking pictures on Matijevic Hill, Opportunity hunkered down for Halloween and spent the holiday quietly, staying out of mischief's way and the Mars Exploration Rovers (MER) mission roved another month closer to its ninth anniversary of working on the surface of the Red Planet.

Atmospheric changes on Titan

Watching the slow shift of seasons on Titan

A sharp-eyed amateur noticed two images of Titan taken 20 months apart from nearly exactly the same perspective, and they illustrate how the shifting of Saturn's seasons has brought change to Titan's atmosphere.

Preliminary version of Curiosity sol 84 self-portrait 2

Huge self-portrait of Curiosity on Mars

Curiosity used MAHLI, the scientific camera at the end of the robotic arm, to shoot a huge color portrait of herself sitting on Mars, with Gale's central mountain in the background.

GOES composite image of Earth's globe with Hurricane Sandy, October 28, 2012

Hurricane Sandy: Thanks for lives saved already

Today hurricane Sandy is a major threat to life and property across the west coast of the northern Atlantic ocean. I just want to give thanks in advance to all the people who have devoted their careers to making sure that Americans have sufficient warning of devastating, unstoppable weather events like this one.

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DPS 2012: Future impact risks

Continuing my writeup of notes from last week's Division for Planetary Sciences meeting: presentations on the risks of future asteroid impacts. How much risk do we face, and what are the appropriate actions to take in the face of that risk?

Mars Exploration Rover

Field Report From Mars: Sol 3111- October 23, 2012

We on the MER Opportunity science team are currently doing an “outcrop walk” with Opportunity on the slopes of Cape York, a small residual part of the rim on the 20+ km diameter Endeavour Crater, Mars.

Huge color global mosaic of Dione

A huge color global view of Dione

From the Cassini data archives comes a huge (5000 pixels square!) color image of Saturn's icy moon Dione, worth investigating from both near and far.

Ontario Lacus, Titan

DPS 2012, Tuesday: Titan's surface

Tuesday morning at the Division of Planetary Sciences meeting featured talks on the surface composition and landforms on Titan, including lakes and

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DPS 2012, Monday: Icy moons and a four-star exoplanet

In the first full day of the annual meeting of the Division of Planetary Sciences of the American Astronomical Society, I listened to scientific sessions on icy worlds and on an exoplanet in a four-star system.

Phil Stooke's Opportunity route maps (updated to sol 4495)

Book Review: The International Atlas of Mars Exploration, by Phil Stooke

I've been waiting for the publication of this book for years. Phil Stooke's International Atlas of Mars Exploration, just published by Cambridge University Press, is an exhaustively awesome labor of love, chronicling the first five decades of Mars exploration in pictures, maps, and facts.

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