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Blog Archive

 

Pretty picture: A sunset postcard and a special shadow from Opportunity

Posted by Emily Lakdawalla on 2012/02/21 04:31 CST

It took Don Davis many hours of meticulous labor to assemble this beautiful postcard from Mars.

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More Dawn Vesta approach images: first color views

Posted by Emily Lakdawalla on 2012/02/17 11:37 CST

�On June 30, Dawn stopped thrusting for a full Vestian day -- five hours and 20 minutes -- and just watched the asteroid rotate. But unlike the previous observations, they used all of Dawn's�color filters�to acquire the best-ever color photos of the lumpy world.

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Dawn images of Vesta! Released!! For everyone!!!

Posted by Emily Lakdawalla on 2012/02/14 10:57 CST

Some time in the last few days, the Dawn team�made public the first preliminary version�of the first release of their data from the Vesta phase of their mission.�

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Pretty picture: Enceladus, in lovely color

Posted by Emily Lakdawalla on 2012/02/06 02:38 CST

Here's an awesome picture to start off the week. The data came from Cassini's flyby of Enceladus on January 31, 2011; it was part of Cassini's January 2012 data release.�

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At last: Rosetta's Mars flyby photos have been released!

Posted by Emily Lakdawalla on 2012/01/24 03:51 CST | 1 comment

On February 24, 2007, the Rosetta spacecraft passed by Mars, the second of four planetary gravity-assist flybys on its long route to a 2014 rendezvous with comet Churyumov-Gerasimenko. At the time, they released two photos from the main science camera, OSIRIS.

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Pretty picture: Saturn, a big moon, and a teeny one

Posted by Emily Lakdawalla on 2012/01/09 11:23 CST

A recent view from Cassini of Saturn with its largest moon (Titan) and one of its small ringmoons, Prometheus.

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Pretty pictures from Cassini's recent Dione flyby

Posted by Emily Lakdawalla on 2011/12/22 11:52 CST

Cassini flew close by Dione on December 12 and, as usual, the close pass provided opportunities for lots of dramatic photos, not just of Dione, but of other moons wandering by in the background.

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Pretty picture: Mimas scuttles behind Dione

Posted by Emily Lakdawalla on 2011/12/12 06:36 CST

Images from the Cassini spacecraft's flyby of Dione.

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Mariner 9 approaching Mars: a movie!

Posted by Emily Lakdawalla on 2011/12/09 01:32 CST

In celebration of the 40th anniversary of Mariner 9's November 13, 1971 arrival at Mars, Daniel Macháček has produced a morphed animation of the images that Mars' first orbiter took while approaching the planet.

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At last, I've finished my scale solar system presentation slide/poster

Posted by Emily Lakdawalla on 2011/12/01 01:22 CST

A presentation providing a correctly scaled, reasonably correctly colored view of the largest bodies in the solar system is made available for use by teachers, professors, and informal educators.

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Bye-bye, Curiosity

Posted by Emily Lakdawalla on 2011/11/29 09:35 CST

A few fortunate (and forward-thinking) skywatchers looked upward in the hours after Curiosity's launch and were able to see the spacecraft leaving Earth.

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Our friendly neighborhood asteroid, 2005 YU55 (an animation)

Posted by Emily Lakdawalla on 2011/11/16 02:58 CST

Last week JPL released two animations of asteroid 2005 YU55 made from the radar data acquired by Goldstone's 70-meter radio dish.

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A little fun with Deep Impact deep-sky data

Posted by Emily Lakdawalla on 2011/11/14 05:44 CST

Last week, the team put all of the data from Deep Impact's deep-sky imaging session online, and challenged visitors to see what they could make from it. I made some photos of M51, but there were some challenges.

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Scale solar system presentation slide, version 2

Posted by Emily Lakdawalla on 2011/10/31 01:14 CDT

Last month I posted a preliminary version of a slide I was working on for use in my public presentations, a slide that contains everything in the solar system bigger than 400 kilometers across, and invited comment. I've listened to all of your comments and corrections and come up with a second version.

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Science from Vesta at the Geological Society of America meeting

Posted by Emily Lakdawalla on 2011/10/24 05:55 CDT

I'm nearly two weeks late getting to this news but better late than never, right? There was a press briefing from the Dawn mission at the Geological Society of America (GSA) meeting on October 12.

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Pretty pictures & movies: Eye candy from two recent Cassini Enceladus flybys

Posted by Emily Lakdawalla on 2011/10/20 12:35 CDT

Cassini has completed two very close flybys of Enceladus in less than three weeks, one of them just this morning, and the images from that encounter have already arrived on Earth.

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Saturnlit moon, sunlit fountains

Posted by Emily Lakdawalla on 2011/10/07 06:00 CDT

It's been a week of very heavy science on this blog, so I thought it'd be nice to go into the weekend with a post in which a breathtaking picture speaks for itself, without needing my thousands of words.

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Pretty pictures: Dancing moons

Posted by Emily Lakdawalla on 2011/09/28 12:28 CDT

Since Cassini currently orbits Saturn within the plane of Saturn's rings, it has lots of chances to catch two or more moons in the same photo. One such "mutual event" happened on September 17, featuring four moons: Titan, Dione, Pan, and Pandora.

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A Distant View of Triton

Posted by Ted Stryk on 2011/09/26 01:19 CDT

Ted Stryk reminisces on how he was turned on to astronomy.

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Blast from the past: Pioneer 10 and 11 pictures of Jupiter

Posted by Emily Lakdawalla on 2011/09/07 02:06 CDT

Here's a few pretty pictures that were recently dusted off by Ted Stryk. Pioneer 10 and 11 passed by Jupiter on December 4, 1973, and December 3, 1974, respectively. Here are three pictures from those two encounters, in versions newly processed by Ted from scanned photographic prints found during a research trip to NASA's Ames Research Center.

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