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Pretty picture: Looking backward
Posted by Emily Lakdawalla on 2013/07/23 05:03 CDT | 15 comments
Here it is: the view from Saturn of our Earthly home, one and a half billion kilometers away. We see Earth and the Moon through a thin veil of faintly blue ice crystals, the outskirts of Saturn's E ring. Earth is just a bright dot -- a bit brighter than the other stars in the image, but no brighter than any planet (like Saturn!) in our own sky.
Return of the Pale Blue Dot
Join the Wave at Saturn (and Mercury)!
Posted by Mat Kaplan on 2013/07/18 11:27 CDT | 4 comments
You can be part of a planetwide group photo as Cassini and MESSENGER turn their cameras Earthward on July 19.
Posted by Emily Lakdawalla on 2013/05/15 05:02 CDT | 6 comments
I've been out of town for a couple of days and am overwhelmed with work and an overflowing email box. So what do I do about that? I ignore what I'm supposed to be doing and play with Cassini raw image data, of course. Here is a "mutual event" of Mimas (the bigger moon) and Pandora (the outer shepherd of the F ring).
Posted by Bill Dunford on 2013/04/15 02:08 CDT | 3 comments
Cassini's unique views of Jupiter and Saturn.
LPSC 2013: License to Chill (or, the solar system's icy moons)
Posted by Emily Lakdawalla on 2013/03/27 11:52 CDT
Reports from the March 19 session at the Lunar and Planetary Science Conference covering eight icy moons in the outer solar system: Ganymede, Europa, Dione, Rhea, Mimas, Tethys, Enceladus, and Miranda.
Posted by Bill Dunford on 2013/02/18 10:20 CST | 2 comments
When the sunlight catches it just right, Saturn's F Ring is something to see.
Enceladus: A problem of contrast
Posted by Emily Lakdawalla on 2013/01/30 07:00 CST | 6 comments
Time for my quarterly foray into the Cassini archival science data! The very first image I downloaded from the January 1, 2013 data release presented an interesting challenge to my image processing skill. I'll show you the pretty picture of Enceladus and then explain how I processed it.
Happy Cassini PDS Release Day!
Posted by Emily Lakdawalla on 2012/10/08 01:00 CDT | 2 comments
It's a quarterly feast day for me: the day that the Cassini mission delivers three months' worth of data to NASA's Planetary Data System. Here's a few images processed from the October 1, 2012 data release.
Posted by Emily Lakdawalla on 2012/08/22 07:01 CDT | 8 comments
A pretty picture of Cassini's current view of Saturn.
Video: Saturn makes its own drama (with a little help)
Posted by Emily Lakdawalla on 2012/05/22 05:43 CDT | 5 comments
The apparently simple device of running Cassini images together like a flipbook makes for a dramatic movie, especially with the help of well-timed musical cues.
Pretty picture: A study in ringlight
Posted by Emily Lakdawalla on 2012/03/08 02:27 CST
Clearly, this is Saturn, and its rings, and if you look closer you can see a tiny circle, on top of the rings, which is Mimas, and two stars in the background. It should look weird to you that while the rings are bright, Mimas is a black dot. What is happening here? Nearly everything in this picture is lit by light that has not arrived directly from the Sun.
Pretty pictures from Cassini's recent Dione flyby
Posted by Emily Lakdawalla on 2011/12/22 11:52 CST
Cassini flew close by Dione on December 12 and, as usual, the close pass provided opportunities for lots of dramatic photos, not just of Dione, but of other moons wandering by in the background.
What do we know about planetary rings? Quite a lot, actually!
Posted by Emily Lakdawalla on 2011/12/15 11:18 CST
A summary of a new article by Matt Tiscareno about planetary ring systems that reviews the known ring systems of the four giant planets and the prospects for ring systems yet to be discovered.
Some first impressions of EPSC-DPS meeting
Posted by Emily Lakdawalla on 2011/10/03 11:55 CDT
Some first impressions of EPSC-DPS meeting
Pretty pictures: Dancing moons
Posted by Emily Lakdawalla on 2011/09/28 12:28 CDT
Pretty pictures: Dancing moons
Pretty picture: five moons for Cassini
Posted by Emily Lakdawalla on 2011/08/03 09:57 CDT
Explaining how to combine the red, green and blue images from a recent Cassini image session containing five of Saturn's moons: Janus, Pandora, Enceladus, Mimas and Rhea.
Posted by Emily Lakdawalla on 2011/04/19 01:03 CDT
Some recent photos that Cassini took from a position nearly in Saturn's shadow caught my eye, and I made a quick color composite. What an amazing view this would be if you were riding on the spacecraft!
Lots of great stuff in the latest Cassini data release
Posted by Emily Lakdawalla on 2011/04/13 04:56 CDT
I've got some lovely pictures from Saturn to show you! Every three months, the Cassini mission dumps gigabytes worth of precious Saturn data into the Planetary Data System, and the latest gift came on April 1. This particular pile of data, which was taken between April 1 and June 30, 2010, contains a lot of really terrific moon observations.
Some recent pictures of Saturn's northern storm
Posted by Emily Lakdawalla on 2011/02/07 04:35 CST
There is a huge storm that's spreading across so much of Saturn that it's been readily visible even from Earth-based telescopes. Over the past couple of days a couple of new images of Saturn have appeared that show just how enormous the storm is today.
Goodies from the January 11 Rhea flyby
Posted by Emily Lakdawalla on 2011/01/12 10:44 CST
Cassini got some incredibly tricky shots during its January 11 Rhea flyby!
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