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Is Europa's ice thin or thick? At chaos terrain, it's both!

Emily Lakdawalla • November 17, 2011 • 6

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).

Door 22 in the 2010 advent calendar

Emily Lakdawalla • December 22, 2010

Time to open the twenty-second door in the advent calendar. Where in the solar system are these degraded craters?

Door 15 in the 2010 advent calendar

Emily Lakdawalla • December 15, 2010

Time to open the fifteenth door in the advent calendar. Where in the solar system is this cratered world?

Door 14 in the 2010 advent calendar

Emily Lakdawalla • December 14, 2010

Until the New Year, I'll be opening a door each day onto a different landscape from somewhere in the solar system. Where in the solar system are these red freckles?

Door 12 in the 2010 advent calendar

Emily Lakdawalla • December 12, 2010

Time to open the twelfth door in the advent calendar. Where in the solar system is this trapezoidal mountain?

Door 3 in the 2010 advent calendar

Emily Lakdawalla • December 03, 2010

Time to open the third door in the advent calendar. Until the New Year, I'll be opening a door onto a different landscape from somewhere in the solar system. Where in the solar system is this wispy terrain?

Exposing Io's true colors

Jason Perry • August 20, 2010

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

Volcanism across the solar system: Io

Emily Lakdawalla • July 20, 2010

Three months ago, grandiosely, I announced that I was going to survey volcanism across the solar system, and I began the journey on Earth. Then I failed to follow up.

Pretty picture: Io, labeled

Emily Lakdawalla • March 05, 2010

Jason Perry just posted this lovely labeled image of Io over at his blog, the Gish Bar Times.

400 Years of the Galilean Satellites

Emily Lakdawalla • January 07, 2010

It was 400 years ago today that Galileo discovered smaller planets attending the planet Jupiter.

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