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Intro Astronomy 2014. Class 8: Icy Galilean Satellites, Saturn System
Posted by Bruce Betts on 2014/04/11 02:28 CDT
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.
Intro Astronomy Class 7: Near Earth Asteroids and the Jupiter System
Posted by Bruce Betts on 2014/03/21 02:10 CDT
Examine the threat of near Earth asteroids and begin exploring the Jupiter System in this video of class 7 of Bruce Betts' Introduction to Planetary Science and Astronomy class.
LPSC 2014: Plate tectonics on another world: Europa
Posted by Emily Lakdawalla on 2014/03/19 01:28 CDT | 7 comments
Simon Kattenhorn and Louise Prockter may finally have found subduction zones on Europa, which would it the only other place in the solar system besides Earth that is known to have active plate tectonics.
Posted by Bill Dunford on 2014/01/13 12:46 CST | 5 comments
When sent from deep space, even imperfect images can inform and amaze.
Posted by Steve Vance on 2013/12/16 01:36 CST | 5 comments
It's time to reassess Europa exploration, past, present and future. The Destination Europa! session at AGU, inspired by the eponymous website and movement, didn't take exactly that message as its theme, but it's what I got from the presentations. What an ELECTRIFYING meeting this has been for Europa exploration!
A serendipitous observation of tiny rocks in Jupiter's orbit by Galileo
Posted by Emily Lakdawalla on 2013/05/17 09:54 CDT | 3 comments
A look at an older paper describing Galileo's possible sighting of individual ring particles orbiting Jupiter as companions to its inner moon Amalthea.
Posted by Emily Lakdawalla on 2013/03/01 06:43 CST | 2 comments
Last week I trawled the archives to find all of Galileo's images of asteroid Ida; this week, I turned to Gaspra.
Galileo got so many more images of Ida than I realized
Posted by Emily Lakdawalla on 2013/02/22 04:14 CST | 1 comments
While writing up the cruise-phase issues of the Galileo Messenger a couple of weeks ago, I came across a fuzzy montage of images of Ida that I had not seen before. So I decided to spend some time digging into the Planetary Data System to see if there were more images to be found. I found lots and lots pictures that I'd never seen before!
Galileo Messengers: Cruise to Venus, Earth, Gaspra, Earth, Ida, and almost to Jupiter
Posted by Emily Lakdawalla on 2013/02/05 08:40 CST | 2 comments
It's taken me a year to face the emotionally draining task of reading and writing about Galileo's cruise phase as chronicled in the mission's newsletters.
My ever-popular asteroids-and-comets montage, now in color, with bonus Toutatis
Posted by Emily Lakdawalla on 2012/12/18 04:26 CST | 9 comments
My collage of all the asteroids and comets visited by spacecraft is probably the single most popular image I have ever posted on this blog. I've now updated it to be in color and to include Toutatis.
In Honor of JUICE, a New View of Europa
Posted by Ted Stryk on 2012/05/07 05:30 CDT | 2 comments
To celebrate ESA's selection of the JUICE mission to Jupiter, Ted Stryk produced a new global view of Europa from Galileo data.
Blast from the past: The Galileo Messenger
Posted by Emily Lakdawalla on 2012/01/20 10:42 CST
From 1981 to 1997, the Galileo mission published an approximately quarterly newsletter called the Galileo Messenger. It eventually ran to 45 issues, until the end of the Prime Mission. The first 20 were published before Galileo ever got off the ground. That period is the subject of this post.
Is Europa's ice thin or thick? At chaos terrain, it's both!
Posted by Emily Lakdawalla on 2011/11/17 04:32 CST | 6 comments
Among Europa scientists there are two warring factions: the thick-icers and the thin-icers. The question is how thick is the ice shell that overlies Europa's subsurface ocean (the existence of which pretty much everyone agrees on).
Posted by Jason Perry on 2010/08/20 05:15 CDT
Thanks to its active volcanic activity and sulfur-rich surface, Io is one of the most colorful worlds yet seen in the Solar System, save the Earth of course
400 Years of the Galilean Satellites
Posted by Emily Lakdawalla on 2010/01/07 03:34 CST
It was 400 years ago today that Galileo discovered smaller planets attending the planet Jupiter.
Posted by John Spencer on 2009/06/08 01:49 CDT
Taking a look at Jupiter's moon, Io, from Hawaii.
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