All
All
Stories, updates, insights, and original analysis from The Planetary Society.
Checking up on Jupiter and Saturn
It's amateur astronomers, not professionals, who are shouldering the burden of constant monitoring of the weather on Jupiter and Saturn. What's going on these days in the outer solar system?
Pretty picture: Saturn, a big moon, and a teeny one
A recent view from Cassini of Saturn with its largest moon (Titan) and one of its small ringmoons, Prometheus.
Pretty pictures from Cassini's 12 December 2011 Dione flyby
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!
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.
Pretty pictures & movies: Eye candy from two recent Cassini Enceladus flybys
Cassini has completed two very close flybys of Enceladus in less than three weeks, one of them just this morning, and the images from that encounter have already arrived on Earth.
Some first impressions of EPSC-DPS meeting
Today they turned on the scientific fire hose at the Division of Planetary Sciences / European Planetary Science Congress meeting happening here in Nantes, France. My brain already feels full and I still have four more days!
Pretty pictures: Dancing moons
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
Pretty picture: five moons for Cassini
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.
Pretty movie: Everything in the Saturn system is in motion!
A few weeks ago a producer for a public television space documentary asked me if I knew of any cool Cassini animations and my answer was,
Color versions of the recent Titan & moon beauty shots
Last week I got very excited about a set of pictures that had appeared on Cassini's raw images website, but was sad that I couldn't make color versions myself. I was so excited that I failed to identify the little icy moon in the picture correctly.
Nearly behind Saturn
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
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
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
Cassini got some incredibly tricky shots during its January 11 Rhea flyby!
The Year in Pictures: 2010
I've just posted my annual roundup of significant images from planetary exploration in 2010.
Pretty picture: Three moons of Saturn
The Cassini Raw Images Website always offers rewards to the browser. This evening I found the raw images necessary to create this color composite, showing the hazy orange moon Titan, the mid-sized icy moon Dione, and the tiny rock Prometheus all at the same time.
An update to the Cassini Tour Page
Where's the Cassini Saturn orbiter going to be in the next week -- or hundred weeks? It's all already planned out.
DPS 2010: Pluto and Charon opposition surges, Nix and Hydra masses, Pluto and Eris compositions
An awful lot of the talks in the Pluto session on Tuesday morning, October 5, at the Division of Planetary Sciences meeting spent more time focusing on how bad weather conditions were during the astronomers' attempts to view Pluto as it occulted background stars than they did on any measurements or science that came out from the data.
Voyager Mission Status Bulletins: Jupiter and Saturn
Last week I posted a stack of Voyager Mission Status Bulletins, which were once the main resource for space enthusiasts to follow the dramatic events and photos of an in-flight space mission.
How to Recognize Titan from Quite a Long Way Away
You know, I could fill this blog almost entirely with the amazing images that Gordan Ugarkovic locates, processes into prettiness, and uploads to his Flickr account.