Blog Archive
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.
Pretty picture: tessera terrain on Venus
Posted by Emily Lakdawalla on 2013/02/07 04:18 CST | 1 comments
In which I dive into the Magellan radar data set and come up with some images of an unusual and possibly unique solar system terrain: tessera.
Venerable Deep Impact spacecraft has photographed comet ISON
Posted by Emily Lakdawalla on 2013/02/05 05:24 CST | 6 comments
Deep Impact has made the first space-based observations of comet ISON.
A new rover self-portrait and a new color image of Curiosity from orbit
Posted by Emily Lakdawalla on 2013/02/04 05:40 CST | 7 comments
Curiosity is inching her way through her first use of the drill on a Martian rock. She paused in the proceedings to capture a second Martian "selfie."
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.
Saturn's Hexagon Viewed from the Ground
Posted by Leigh Fletcher on 2013/02/01 05:49 CST | 2 comments
For the first time, amateur astronomers are capturing spectacular images of Saturn's bizarre north polar hexagon.
Posted by Emily Lakdawalla on 2013/02/01 11:47 CST
Remembering Rick Husband, William McCool, Michael Anderson, Kalpana Chawla, David Brown, Laurel Clark, and Ilan Ramon on the tenth anniversary of the loss of the space shuttle Columbia.
Pretty picture: Neptune and Triton
Posted by Emily Lakdawalla on 2013/02/01 12:29 CST | 6 comments
On a lonely evening, what is one to do but to dip into archival space image data and surface with a gorgeous photo of a crescent Neptune and Triton?
One of my favorite space images of all time: Rosetta was here
Posted by Emily Lakdawalla on 2013/01/31 04:58 CST | 10 comments
A conversation on Twitter today reminded me of this photo, which is one of my all-time favorite space images: the view from Rosetta during its Mars flyby.
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.
Curiosity update, sol 171: Placing the drill
Posted by Emily Lakdawalla on 2013/01/29 11:11 CST | 1 comments
They're getting closer and closer to drilling. Curiosity now seems to be positioned in the spot where they plan to be when they execute that long-awaited first drill.
Posted by Bill Dunford on 2013/01/28 10:00 CST | 5 comments
Just like on Earth, clouds and storms often ripple through the Martian atmosphere. You can even check the daily weather report.
Posted by Ganna (Anya) Portyankina on 2013/01/23 11:51 CST | 2 comments
The Mars I study is really active; the surface constantly changes. We have collected a lot of image data about changing seasonal features near the south pole. There is so much that we can't analyze all of it on our own. We need your help, through a new Zooniverse project named PlanetFour.
Voyager 1 revisited: Io and Europa transiting Jupiter
Posted by Björn Jónsson on 2013/01/22 06:04 CST
What is the highest resolution global Jupiter mosaic that includes a satellite transit that can be assembled from Voyager images? Satellite transits are especially beautiful when the resolution is high enough for some details to be visible on the satellites so I decided to check this. And I was remarkably lucky.
Stars, and stars, and stars: pretty pictures from the European Southern Observatory
Posted by Emily Lakdawalla on 2013/01/21 03:39 CST | 4 comments
My solar system chauvinism is well-established, but I am as much a sucker for beautiful astrophotos as the rest of you. Once in a while I get a media advisory from the European Southern Observatory about a new pretty picture posted on their website, and then I inevitably lose an hour following links to one stunner after another.
More Chang'E 2 Toutatis flyby images
Posted by Emily Lakdawalla on 2013/01/20 09:52 CST | 6 comments
Last week at a meeting of NASA's Small Bodies Assessment Group (SBAG), Han Li of the Chinese Academy of Sciences gave a lengthy presentation on Chang'E 2. Her presentation included a new sequence of photos from the December 13 Toutatis flyby.
Pretty picture: new HiRISE view of Curiosity, sol 145
Posted by Emily Lakdawalla on 2013/01/16 04:58 CST | 2 comments
Mars Reconnaissance Orbiter captured a new view of Curiosity on Mars on January 2 (sol 145). Curiosity was in the same location as the one from which it shot the sol 137 panorama I posted earlier. You can see the rover's tracks leading all the way back to the landing site!
Posted by Emily Lakdawalla on 2013/01/14 06:31 CST | 4 comments
Video views shot by two doomed spacecraft take us flying across the Moon.
Pretty picture: Jupiter photo from an unusual source
Posted by Emily Lakdawalla on 2012/12/26 01:02 CST | 4 comments
A recently launched Earth-observing satellite is using the stars to practice its pointing, and caught a neat animation of Jupiter.
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?











