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Blogs

Blog Archive

 

Do you want to learn more about the Universe?

Posted by Matthew Francis on 2014/01/15 12:08 CST

CosmoAcademy — a project from the CosmoQuest educational and citizen-science group — is offering three new online classes: Introduction to Dark Matter, Introduction to Astronomy via Color Imaging, and Life Beyond Earth: Introduction to Astrobiology.

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Multiple views of comet ISON from solar-observing spacecraft

Posted by Emily Lakdawalla on 2013/12/02 07:50 CST | 6 comments

When comet ISON passed through perihelion last week, solar observing spacecraft had a ringside view. Here are several animations of ISON's perilous passage from the SOHO and two STEREO spacecraft.

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The Mariner Mars Globe

Posted by Don Davis on 2013/11/29 12:04 CST | 3 comments

In 1971 I was being trained to work with the airbrush by the map artists at the U.S. Geological Survey's Branch of Astrogeologic Studies in Flagstaff. However, the project I ended up spending about a quarter of a man-year on was a hand-painted map globe of Mars.

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On space kindness and the Chelyabinsk meteor

Posted by Vitaliy Egorov on 2013/10/04 07:04 CDT | 1 comments

Through an act of kindness, we now have images of the Chelyabinsk meteor trail from Russia's Elektro-L satellite.

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Super cool Phobos and Deimos animations from Mars Express

Posted by Emily Lakdawalla on 2013/10/03 02:17 CDT

I've been delving in to the Mars Express image archive this week, checking out its images of Phobos, and found a couple of really cool time-series of images to assemble into animations.

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Two new ways to browse Vesta: 2. Vesta Image data browser

Posted by Emily Lakdawalla on 2013/09/16 10:57 CDT

A few weeks ago I received an email pointing me to a really cool new map-based browser to Dawn's Vesta image data.

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Producing global views of Vesta from archival data

Posted by Björn Jónsson on 2013/08/21 12:18 CDT | 3 comments

Björn Jónsson produces beautiful color and 3D global mosaics of Vesta from Dawn's archival data.

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Want to learn how to process space images? Take my Cosmoquest Academy class!

Posted by Emily Lakdawalla on 2013/08/09 05:40 CDT | 2 comments

The Planetary Society and Cosmoquest have teamed up to offer a short course in space image processing, and I'll be teaching! The course comprises four one-hour sessions from October 14 to 23.

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One of my favorite image processing tricks: colorizing images

Posted by Emily Lakdawalla on 2013/04/23 02:11 CDT | 2 comments

An easy image processing trick -- using lower-resolution color data to colorize a black-and-white photo -- is relied upon by many space missions to keep data volumes low. Here's how to do it.

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Russia's Mars 3 lander maybe found by Russian amateurs

Posted by Emily Lakdawalla on 2013/04/12 01:22 CDT | 4 comments

Виталий Егоров (Vitaliy Egorov) is a Russian space enthusiast who enlisted help of fellow enthusiasts to search for -- and maybe find -- the Russian Mars 3 hardware on the Martian surface. Here he explains how he did it.

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Browse Curiosity's data in the Analyst's notebook

Posted by Emily Lakdawalla on 2013/03/05 01:29 CST

Last week the Curiosity mission made its first data delivery to the Planetary Data System. The bad news: none of the science camera image data is there yet. The good news: there are lots and lots of other goodies to explore.

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Galileo's images of Gaspra

Posted by Emily Lakdawalla on 2013/03/01 06:43 CST | 2 comments

Last week I trawled the archives to find all of Galileo's images of asteroid Ida; this week, I turned to Gaspra.

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Browsing Landsat data is a lot easier than I thought it was

Posted by Emily Lakdawalla on 2013/02/08 05:05 CST | 2 comments

With the Landsat Data Continuity Mission scheduled to launch on Monday, there's been a lot of Tweeting about Landsat, and through one such Tweet I learned about a resource that I hadn't known existed before: the LandsatLook Viewer. This is a graphical interface to more than a decade worth of Landsat data, a tremendous resource for anyone interested in Earth's changing surface, natural or manmade.

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Day Hikes in the Labyrinth of Night

Posted by Bill Dunford on 2013/02/04 10:02 CST

Noctis Labyrinthus on Mars is an amazing place for an imagined day hike, courtesy of images from Mars Express.

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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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Who is the photographer behind Mars rover photos? Answer from Mark Lemmon

Posted by Mark Lemmon on 2012/12/21 11:10 CST | 2 comments

A Mars imaging scientist answers the question: who is the "photographer" behind images returned from Mars?

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Images from the long-awaited Dawn Vesta data set

Posted by Daniel Macháček on 2012/11/29 11:55 CST | 4 comments

A few days ago, the Dawn mission finally published their archival data. During the year of delay I often looked with anticipation to the Planetary Data System to check whether or not images were there, and I am delighted that they are finally available. Was the wait worth it? Definitely!

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Dawn Vesta Data is publicly available (for real this time!)

Posted by Emily Lakdawalla on 2012/11/16 07:08 CST | 2 comments

After a false start earlier this year, the first chunk of Dawn Framing Camera data from Vesta has finally made it to the Planetary Data System. As a first step to understanding the data set, I've built some index pages to these cool images.

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Pretty picture: Landsat view of southern Greenland

Posted by Björn Jónsson on 2012/11/13 05:24 CST

This is a very large (19000 pixels square) mosaic of the fjords and glaciers of southern Greenland. I had been interested for a long time in experimenting with the processing of Earth satellite imagery just to get a comparison to the other planets.

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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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