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Blogs

Blog Archive

 

Pretty picture: spectacular Saturn and Titan

Posted by Emily Lakdawalla on 2013/08/15 08:04 CDT | 3 comments

A lovely view of the ringed planet and its hazy moon seen from nearly behind them just a few days ago.

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Terra Cognita

Posted by Bill Dunford on 2013/07/29 01:18 CDT | 4 comments

Pushing back the frontier, and filling in the blank spaces on the map.

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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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Scale comparisons of the solar system's major moons

Posted by Emily Lakdawalla on 2013/07/10 06:05 CDT | 15 comments

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

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One Ocean World Among Many

Posted by Jim Bell on 2013/06/03 03:53 CDT | 6 comments

I'm absolutely floored when I stop to think that our beautiful blue ocean is only one of perhaps a half dozen or more oceans on other worlds in our solar system, and only one of probably millions (or more) oceans on other Earth-like planets in our galaxy. Oceans abound!

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The Shores of the Kraken Sea: Great Place Names in the Solar System

Posted by Bill Dunford on 2013/05/28 08:59 CDT | 9 comments

Nothing reflects the romance of deep space exploration more than the evocative names of places on the planets and moons.

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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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Meteor showers on Titan: an example of why Twitter is awesome for scientists and the public

Posted by Emily Lakdawalla on 2013/03/06 12:48 CST | 5 comments

I use a variety of social networking tools to perform my job, but there's one that's more important and valuable to me than all the rest combined: Twitter. Yesterday afternoon there was a discussion on Twitter that exemplifies its value and fun: are there visible meteors on Titan?

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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 comments

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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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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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: Halo on a halo?

Posted by Emily Lakdawalla on 2012/06/15 05:21 CDT | 6 comments

An interesting set of images of Titan that Cassini took recently shows a peculiar cap at Titan's south pole.

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Titan, Dead or Alive? A Debate

Posted by Emily Lakdawalla on 2012/05/02 10:32 CDT

A lively discussion and debate between planetary polymaths Ralph Lorenz and Jeffrey Moore about Titan, hosted by the Denver Museum of Nature and Science, moderated by David Grinspoon.

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Notes from the Lunar and Planetary Science Conference: Making Cassini's radar images prettier

Posted by Emily Lakdawalla on 2012/03/26 02:12 CDT

One of the more exciting talks last week was given by Antoine Lucas about his work with Oded Aharonson "denoising" Cassini radar images of Titan. Cassini's radar images are superior to the camera photos in revealing fine details and topography on Titan's surface, but they do suffer from a random noise component that makes the pictures look snowy. Antoine and Oded have developed a method for removing much of this noise.

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Notes from Titan talks at the 2012 Lunar and Planetary Science Conference (LPSC)

Posted by Emily Lakdawalla on 2012/03/20 02:16 CDT

One of the topics I found most exciting yesterday was a series of talks on Titan's climate. Bob West showed how Titan's detached haze has shifted with time. Zibi Turtle presented about how Titan's weather has changed with these seasonal changes. Jason Barnes followed up Zibi's talk -- which was based on Cassini camera images -- with a study of the same regions using data from Cassini's imaging spectrometer, trying to figure out what was going on with that brightening. Ralph Lorenz talked about rainfall rates on Titan. Jeff Moore asked: what if Titan hasn't always had a thick atmosphere?

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Parallel planetary processes create semantic headaches

Posted by Emily Lakdawalla on 2012/01/26 03:55 CST

I ran into a semantic problem today: what to call the science of studying liquids on Titan?

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Watch this week's Google+ Space Hangout

Posted by Emily Lakdawalla on 2012/01/19 03:12 CST

This week's lineup is a largely astronomical crowd so most of the conversation concerned dark matter and boiling exoplanets and imaging the black hole at the center of our galaxy.

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Evaporites on Titan

Posted by Emily Lakdawalla on 2012/01/12 04:33 CST

Evaporites form on planetary surfaces when dissolved chemical solids precipitate out of saturated solution as their liquid solvent evaporates and, until recently, were known to exist only on Earth and Mars. This article from the IAG Planetary Geomorphology Working Group describes the third planetary instance of evaporite, discovered on Saturn's moon Titan.

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