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

Cassini's view from the backside of Saturn

Over time, Cassini's orbit apoapsis—the point on the orbit that is farthest from Saturn—has been shifting slowly toward Saturn's night side. Lately, this point of view has resulted in some truly lovely photos of the planet.

Mars Exploration Rovers Update: Spirit Discovers More Meteorites as Opportunity Closes in

The Mars Exploration Rovers (MER) are wheel deep in winter, and still faring well, working hard, and sending home interesting new finds despite the below freezing Martian temperatures. The next month or so will bring the season's coldest temperatures to the rover's present habitats, but so far, no one on the team is losing any sleep over whether or not they'll make it through, because these rovers just keep going and going . . .

MESSENGER has flipped for the last time

I just received a MESSENGER mission news update stating that the MESSENGER spacecraft, en route to Mercury via two Venus flybys, has passed another milestone on its long journey: it has, for the last time, passed from Earth's environs toward the inner solar system.

New Horizons tracks an asteroid

New Horizons is spending the summer traversing the asteroid belt. I haven't written a lot about New Horizons lately because the mission has been going so uneventfully well. But now I've got something to write about: data!!

A play-by-play of the Cassini scare on Mayday

Last week's Cassini Significant Events Report included a detailed play-by-play of the frightening morning of Mayday. I thought it was a very interesting read on how a mission deals with an

OPAG, Day 1: Getting to Europa

Next up at the Outer Planets Assessment Group meeting was an overview of the plans for future Europa missions.

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