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

Explore spinnable Saturn and Jupiter moons with Google Maps

Emily Lakdawalla • October 27, 2017 • 2

Google Maps released several new map products that allow you to see the locations of named features on many solar system planets and non-planets, spinning them around in space with your mouse.

Pretty Cassini pictures: animation of Iapetus' north pole, and other fun

Emily Lakdawalla • April 03, 2015 • 4

Now that Cassini has returned to Saturn's equatorial plane, it has lots of opportunities to observe Saturn's moons. For about a week, Cassini has been taking regular sets of images of Iapetus, which I've assembled into an animation.

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.

Cassini begins a year of icy moon encounters with a flyby of Rhea

Emily Lakdawalla • February 12, 2015 • 5

At last! Cassini is orbiting in Saturn's ring plane again. I do enjoy the dramatic photographs of Saturn's open ring system that Cassini can get from an inclined orbit, and we won't be getting those again for another year. But with an orbit close to the ring plane, Cassini can repeatedly encounter Saturn's icy moons, and icy moon flybys are my favorite thing about the Cassini mission.

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.

More radar images of icy moons from Cassini: Iapetus, Enceladus, and Rhea

Emily Lakdawalla • December 21, 2011

When I posted about the really cool Cassini SAR images of Enceladus a few weeks ago, I initially wrote that this was the first-ever SAR image of an icy moon other than Titan. Several people (some readers and two members of the Cassini science team!) corrected that statement: Cassini has performed SAR imaging of other icy moons (including Enceladus) before.

Pretty pictures: Dancing moons

Emily Lakdawalla • September 28, 2011

Since Cassini currently orbits Saturn within the plane of Saturn's rings, it has lots of chances to catch two or more moons in the same photo. One such "mutual event" happened on September 17, featuring four moons: Titan, Dione, Pan, and Pandora.

Scale solar system presentation slide, a provisional version for you to review

Emily Lakdawalla • September 15, 2011

I'm preparing a talk for the Pacific Astronomy and Telescope Show here in Pasadena on Sunday afternoon at 1:45. I have spent the morning putting together a slide that I have long wanted to have for presentations.

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