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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.

Planetary Society Advent Calendar for December 25: Double planet

Emily Lakdawalla • December 24, 2009

To those of you who celebrate the holiday, merry Christmas! I hope Santa was good to you.

Planetary Society Advent Calendar for December 24: Ganymede

Emily Lakdawalla • December 24, 2009

I think if you polled most space fans about their favorite moons of Jupiter, Ganymede would come in a consistent third behind Europa and Io. It's just not fair.

Planetary Society Advent Calendar for December 13: Dactyl

Emily Lakdawalla • December 13, 2009

If you don't think Pluto gets enough respect, just imagine what it's like to be a satellite of an asteroid.

Planetary Society Advent Calendar for December 11: Io

Emily Lakdawalla • December 11, 2009

This is a special post for all of my readers who are lighting the first candle on their menorot this evening.

Four hundred and fourteen years since Galileo

Emily Lakdawalla • December 07, 2009

Galileo, the scientist, discovered the Galilean satellites of Jupiter four hundred years ago next month, while Galileo, the mission, arrived at Jupiter to study those moons in situ fourteen years ago Sunday.

Planetary Society Advent Calendar for December 3: Europa

Emily Lakdawalla • December 03, 2009

From a distance, Jupiter's fourth largest moon Europa is the smoothest object in the solar system; its outline traces out a perfect circle.

Carnival of Space #126, plus more from Jupiter's moon Io

Emily Lakdawalla • October 26, 2009

The 126th Space Carnival is live over at Jason Perry's always-excellent (if rather narrowly focused) Io blog The Gish Bar Times.

Aloha, Io

John Spencer • June 08, 2009

Taking a look at Jupiter's moon, Io, from Hawaii.

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