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Blogs

Blog Archive

 

Jani Radebaugh, Titan Explorer

Posted by Bill Dunford on 2013/07/23 03:47 CDT | 4 comments

Robotic space exploration is human exploration. Meet one of the people behind the machines.

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Dunes on Tatooine

Posted by Ralph Lorenz on 2013/07/17 01:13 CDT

The fictional world Tatooine, scene of action in the Star Wars movies, is named after a town in Tunisia, where parts of the movies were filmed. The desert backdrops against which the movies were filmed are real terrestrial landscapes, which prove to be perhaps unexpectedly dynamic.

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New names for Pluto's little moons Kerberos and Styx; and a new moon for Neptune

Posted by Emily Lakdawalla on 2013/07/15 01:37 CDT | 4 comments

Pluto's moons, formerly known as "P4" and "P5," are now named Kerberos and Styx; I thought I'd help place them into context with a little help from Cassini. Also, Neptune now has a 14th known moon.

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Scale comparisons of the solar system's major moons

Posted by Emily Lakdawalla on 2013/07/10 06:05 CDT | 12 comments

A few presentation slides with pretty pictures, sized to scale, of the large moons of the solar system.

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The Space Computer and the Beautiful Worlds

Posted by Bill Dunford on 2013/06/30 11:31 CDT | 2 comments

An "Up Goer 5" tribute to the Cassini mission.

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Mimas and Pandora dance

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).

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Doing a science on Titan

Posted by Sarah Hörst on 2013/05/15 11:55 CDT | 12 comments

A tale from the scientific trenches: laboratory work to simulate Titan's rich atmosphere.

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Planetary Society Weekly Hangout: Reports from the Lunar and Planetary Science Conference

Posted by Emily Lakdawalla on 2013/03/28 02:00 CDT | 5 comments

On Thursday at noon PDT / 1900 UTC I'll report on some of my favorite findings from LPSC, and answer your questions about the latest planetary science.

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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.

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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.

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Planetary Society Weekly Hangout, Thu Dec 20 1200PT/2000UT: Making Titan in the laboratory with Sarah Hörst

Posted by Emily Lakdawalla on 2012/12/19 10:06 CST | 3 comments

Join us for our weekly Google+ Hangout Thursday at noon PT / 2000 UT. This week, I'm excited to have as a guest Sarah Hörst. Sarah is a postdoc at the University of Colorado whose current line of research involves experimental work on the complex atmospheric chemistry of Titan. She is also applying to be an astronaut!

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Watching the slow shift of seasons on Titan

Posted by Emily Lakdawalla on 2012/11/06 02:45 CST | 1 comment

A sharp-eyed amateur noticed two images of Titan taken 20 months apart from nearly exactly the same perspective, and they illustrate how the shifting of Saturn's seasons has brought change to Titan's atmosphere.

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A huge color global view of Dione

Posted by Emily Lakdawalla on 2012/10/23 02:33 CDT

From the Cassini data archives comes a huge (5000 pixels square!) color image of Saturn's icy moon Dione, worth investigating from both near and far.

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DPS 2012, Day 5: How to make asteroids crunchy on the outside and soft in the middle

Posted by Emily Lakdawalla on 2012/10/19 07:53 CDT | 2 comments

A summary of just one talk from the Division for Planetary Sciences meeting, by Lindy Elkins-Tanton, which provided a neat explanation for how asteroids can be melted and layered on the inside yet have a primitive-looking exterior.

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DPS 2012, Tuesday: Titan's surface

Posted by Emily Lakdawalla on 2012/10/17 10:22 CDT | 4 comments

Tuesday morning at the Division of Planetary Sciences meeting featured talks on the surface composition and landforms on Titan, including lakes and "hot cross buns."

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DPS 2012, Monday: Icy moons and a four-star exoplanet

Posted by Emily Lakdawalla on 2012/10/15 11:31 CDT | 1 comment

In the first full day of the annual meeting of the Division of Planetary Sciences of the American Astronomical Society, I listened to scientific sessions on icy worlds and on an exoplanet in a four-star system.

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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.

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Sturzstroms on Saturn's Moon Iapetus

Posted by Kelsi Singer on 2012/10/01 04:31 CDT

Long-runout landslides (sturzstroms) are found across the Solar System. They have been observed primarily on Earth and Mars, but also on Venus, and Jupiter’s moons Io and Callisto. I have just published a paper about sturzstroms on Iapetus.

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A couple of gems from the archives

Posted by Emily Lakdawalla on 2012/09/10 11:07 CDT | 2 comments

We're still working on migrating content from the old to the new website. This week, that means I am looking, one by one, through some great amateur-processed space images.

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Pretty picture: Meet Tethys

Posted by Emily Lakdawalla on 2012/06/20 02:40 CDT

Just a pretty global view of one of Saturn's flock of icy moons, newly processed from archival data by Gordan Ugarkovic.

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