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

Io erupts, in color

The last one of New Horizons imaging instruments has finally checked in with a lovely image from the Jupiter flyby

LPSC: Tuesday: Volcanism and tectonism on Saturn's satellites

I received this report on the Tuesday afternoon special session on volcanism and tectonism on Saturn's satellites from Anne Verbiscer, an astronomer from the University of Virginia who I first met at the Division of Planetary Sciences meeting in 2005.

Another amazing Io image from New Horizons

The Tvashtar eruption continues to amaze. All this time between Galileo and New Horizons, Io's volcanoes have probably continually produced spectacular eruptions like these.

Cassini's global views of Saturn and its rings

Since late January Cassini has been acquiring several sets of images that show all of Saturn's globe and ring system at once from perspectives well above and below the ring plane.

Saturn from above (2007)

OK, I had planned to confine my posts this week to Rosetta and New Horizons, but I could not let these images sit on my computer until next week.

New Horizons sees Io erupting!

There were two new pictures posted on the New Horizons Science Operations Center website this morning, of Io, and if you enhance the images a bit, there are two clear volcanic plumes visible on the limb -- Tvashtar and Prometheus are active!

Rosetta Was Here

This amazing view was captured by the CIVA camera on Rosetta's Philae lander just four minutes before its closest approach to Mars on February 25, 2007. The spacecraft was only 1,000 kilometers above the planet.

Saturn from above, in color

I wrote recently about a set of images of Saturn acquired by Cassini from a unique vantage point, well above the planet, looking down on the rings. Someone has taken up the challenge of assembling the 36 different images into a single mosaic, in color, and it is as lovely as I'd hoped.

New Horizons' raw images are now online

I got an email from John Spencer this morning telling me that the mission had posted all of New Horizons' most recently acquired images on the mission website.

The Saturn view I've been waiting for

Over the weekend, Cassini acquired a set of images that will (I am assuming) eventually be used to produce a glorious portrait of the ringed planet from a point of view that's never been seen before.

More Cassini RADAR images

Cassini just flew by Titan again on Saturday, and should have acquired a new swath of RADAR data.

Titan's Lakes

The first peer-reviewed article on Titan's lakes comes out in tomorrow's issue of the journal Nature.

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