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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

Ceres Gets Real; Pluto Lurks

Paul Schenk • March 27, 2015

Although we are still along way from understanding this fascinating little body, Ceres is finally becoming a real planet with recognizable features! And that's kinda cool.

At last, Ceres is a geological world

Emily Lakdawalla • February 25, 2015 • 25

I've been resisting all urges to speculate on what kinds of geological features are present on Ceres, until now. Finally, Dawn has gotten close enough that the pictures it has returned show geology: bright spots, flat-floored craters, and enigmatic grooves.

Ceres Coming Into View

Paul Schenk • February 03, 2015 • 1

Dawn is on approach to Ceres, the largest of the asteroids, and is starting to resolve features.

Riding With Cassini Through 2014

Bill Dunford • December 31, 2014 • 1

Video: see some of the sights Cassini saw this year.

45th Binghamton Geomorphology Symposium Report

Ted Stryk • September 23, 2014 • 1

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

Intro Astronomy 2014. Class 8: Icy Galilean Satellites, Saturn System

Bruce Betts • April 11, 2014

Explore the icy moons of the Jupiter System and tour the Saturnian system in this video of class 8 of Bruce Betts' Introduction to Planetary Science and Astronomy class.

Scale comparisons of the solar system's major moons

Emily Lakdawalla • July 10, 2013 • 15

A few presentation slides with pretty pictures, sized to scale, of the large moons of the solar system.

Pretty picture: Meet Tethys

Emily Lakdawalla • June 20, 2012

Just a pretty global view of one of Saturn's flock of icy moons, newly processed from archival data by Gordan Ugarkovic.

Pretty pictures from Cassini's weekend flybys of Enceladus and Tethys

Emily Lakdawalla • April 16, 2012

Cassini flew past both Enceladus and Tethys on April 14. Here's a cool animation of its approach to Enceladus' plumes, and a pretty global picture of Tethys.

Tethys and Dione don't seem to be active after all

Emily Lakdawalla • September 23, 2011

About four years ago I wrote a blog entry about an ESA press release about paper published in Nature that suggested that Saturn's moons Tethys and Dione might have volcanic activity, like Enceladus. A new paper published in Icarus casts doubt on that conclusion.

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