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Blog Archive

 

What do Dawn's color ratio images of Vesta mean?

Posted by Emily Lakdawalla on 2011/11/01 07:58 CDT

The Dawn mission to Vesta continues to release an image every day, and recently they have been releasing lots of color images. I like color pictures for aesthetic reasons, but color is actually a very important property of planetary surfaces.

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The Making of Martian Clouds in Motion: Part 2, tweening the animation

Posted by Emily Lakdawalla on 2011/08/28 06:14 CDT

Two weeks ago I posted an awesome video of Martian clouds in motion. Last week I explained how I accessed the Mars Express images that comprise the animation. Today I'm going to explain how I turned the five-frame animation of Mars Express images into a smooth movie.

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

Posted by Emily Lakdawalla on 2011/08/22 08:39 CDT

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.

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Pretty picture: five moons for Cassini

Posted by Emily Lakdawalla on 2011/08/03 09:57 CDT

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.

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Saturn's storm: A quick turnaround from Hubble

Posted by Emily Lakdawalla on 2011/03/28 04:13 CDT

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.

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LPSC 2011: Wanted: Pioneer 10 & 11 digital data

Posted by Emily Lakdawalla on 2011/03/11 01:39 CST

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.

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Animation of Phobos rotating from recent Mars Express flyby images

Posted by Emily Lakdawalla on 2011/01/25 10:18 CST

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.

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

Posted by Emily Lakdawalla on 2010/09/01 04:14 CDT

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

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Exposing Io's true colors

Posted by Jason Perry on 2010/08/20 05:15 CDT

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

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Decoding a Titan crater

Posted by Emily Martin on 2010/08/16 01:42 CDT

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.

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Venus Express evidence for recent hot-spot volcanism on Venus

Posted by Emily Lakdawalla on 2010/04/09 04:51 CDT

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.

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Pretty picture: Rhea, rings, and two little moons

Posted by Emily Lakdawalla on 2010/04/06 03:07 CDT

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

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Pretty picture: An unexplained chain of elliptical craters on the Moon

Posted by Emily Lakdawalla on 2010/04/02 02:41 CDT

Here's the first cool pic I've managed to produce from the recently-released Lunar Reconnaissance Orbiter Camera data set.

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My arduous journey to the Lunar Reconnaissance Orbiter Camera images

Posted by Emily Lakdawalla on 2010/04/02 02:41 CDT

It's been two weeks since Lunar Reconnaissance Orbiter mission released a flood of data to the Planetary Data System, but I haven't posted any pictures dug out of the camera data yet. This post will explain why.

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Downloading the "First Voyage into the PDS" class

Posted by Emily Lakdawalla on 2010/03/30 04:07 CDT

Here's how to watch the class on how to access Voyager data through the Planetary Data System, which I conducted to a small audience this morning.

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Space Imaging 3: First Voyage into the PDS

Posted by Emily Lakdawalla on 2010/03/28 11:24 CDT

I've finally caught my breath enough to contemplate starting up my imaging classes again.

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In which I dip my toes into an ocean of Hubble data

Posted by Emily Lakdawalla on 2010/03/25 02:21 CDT

I am just drowning in data right now, and I couldn't be happier.

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Find pics and track the rovers in Google Mars

Posted by Emily Lakdawalla on 2010/02/11 05:28 CST

I think a goodly proportion of you readers have already figured this out for yourselves since it was launched last March, but I didn't download and install it until last weekend, so this is new to me: Google Mars is awesome.

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Figuring out the shape of Mars (and other places)

Posted by Emily Lakdawalla on 2010/01/19 01:31 CST

An amateur named Bernhard Braun ("nirgal" on unmannedspaceflight) has been posting the results from a new piece of software he's developed that generates 3-D models of landscapes from single photos.

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