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

The Making of Martian Clouds in Motion: Part 1, working with Mars Express HRSC data

Emily Lakdawalla • August 22, 2011

Last Friday I posted an awesome video of Martian clouds in motion. This week I'll tell you how I made it. The how-to is split up into two parts. The first, today, is how to access Mars Express HRSC image data and process it into the individual animation frames, from which you can make an animated GIF.

Pretty picture: five moons for Cassini

Emily Lakdawalla • August 03, 2011

Explaining how to combine the red, green and blue images from a recent Cassini image session containing five of Saturn's moons: Janus, Pandora, Enceladus, Mimas and Rhea.

Saturn's storm: A quick turnaround from Hubble

Emily Lakdawalla • March 28, 2011

Saturn's raging northern storm has been watched since it began by amateur astronomers, and now Cassini is getting in to the act too. Presumably once astronomers realized the magnitude of what was going on, some of Earth's great observatories were also occasionally pointed at the ringed planet to watch the storm grow.

LPSC 2011: Wanted: Pioneer 10 & 11 digital data

Emily Lakdawalla • March 11, 2011

This is both a Lunar and Planetary Science Conference (LPSC) update and a public service announcement. Ted Stryk has been working for years to locate the original Pioneer 10 and 11 image data from the Jupiter and Saturn encounters.

Animation of Phobos rotating from recent Mars Express flyby images

Emily Lakdawalla • January 25, 2011

Daniel Macháček has colorized some terrific images of Phobos and run them through some morphing software to make a seamless animation that appears to show Phobos rotating before you.

Getting to the real science image data: It's not that hard!

Emily Lakdawalla • September 01, 2010 • 1

If I have to, I will drag reluctant people one at a time to plunge into NASA's Planetary Data System.

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

Decoding a Titan crater

Emily Martin • August 16, 2010

In response to Emily's entry about finally getting her hands on a subscription to the planetary science journal Icarus, I thought I would report on an article from the most recent issue: Geology of the Selk crater region on Titan from Cassini VIMS observations, by Jason Soderblom and 11 other scientists.

Venus Express evidence for recent hot-spot volcanism on Venus

Emily Lakdawalla • April 09, 2010

Venus? What? Somebody still studies that planet? Yes, and in fact there's an active spacecraft there: Venus Express, the poor little sister to Mars Express.

Pretty picture: Rhea, rings, and two little moons

Emily Lakdawalla • April 06, 2010

Here's a lovely picture whose components came down from Cassini a few days ago.

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