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Our journalists and guest bloggers bring you stunning imagery and the space stories that matter most.

Watching the slow shift of seasons on Titan

Emily Lakdawalla • November 06, 2012 • 1

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.

DPS 2012, Tuesday: Titan's surface

Emily Lakdawalla • October 17, 2012 • 4

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."

A couple of gems from the archives

Emily Lakdawalla • September 10, 2012 • 2

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.

Pretty picture: Halo on a halo?

Emily Lakdawalla • June 15, 2012 • 6

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

Titan, Dead or Alive? A Debate

Emily Lakdawalla • May 02, 2012

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.

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

Emily Lakdawalla • March 26, 2012

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.

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

Emily Lakdawalla • March 20, 2012

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?

Parallel planetary processes create semantic headaches

Emily Lakdawalla • January 26, 2012

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

Watch this week's Google+ Space Hangout

Emily Lakdawalla • January 19, 2012

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.

Evaporites on Titan

Emily Lakdawalla • January 12, 2012

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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