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Blog Archive


Some recent pictures of Saturn's northern storm

Posted by Emily Lakdawalla on 2011/02/07 04:35 CST

There is a huge storm that's spreading across so much of Saturn that it's been readily visible even from Earth-based telescopes. Over the past couple of days a couple of new images of Saturn have appeared that show just how enormous the storm is today.

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Io and Jupiter from Voyager 1

Posted by Emily Lakdawalla on 2011/01/31 03:14 CST

Here's an image I've been meaning to post for months, a new mosaic from Voyager 1 by Ted Stryk of Io crossing Jupiter's terminator as it neared closest approach.

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Mars Express' January 2011 Phobos images show how camera works

Posted by Emily Lakdawalla on 2011/01/21 05:09 CST

The Mars Express High-Resolution Stereo Camera (HRSC) team has just released several images from the most recent series of Phobos flybys to the Mars Express blog.

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Two fine color Cassini animations: Prometheus rotating, Tethys and Dione dancing

Posted by Emily Lakdawalla on 2011/01/20 11:23 CST

Daniel Macháček has reached into the dark side of Prometheus and pulled out an incredible amount of detail where the potato-shaped moon is illuminated by Saturnshine. He produced an animation that morphs among the three sets of four-filter color images that Cassini snapped during the flyby.

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Goodies from the January 11 Rhea flyby

Posted by Emily Lakdawalla on 2011/01/12 10:44 CST

Cassini got some incredibly tricky shots during its January 11 Rhea flyby!

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Happy 2011, and an end to the 2010 advent calendar

Posted by Emily Lakdawalla on 2011/01/01 11:43 CST

Welcome 2011! I can't wait for what this year has in store. The prize for all of you who have enjoyed opening each door in the Planetary Society's 2010 advent calendar is one of the best views we can get of one of the biggest objects in the asteroid belt, Vesta.

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Bye bye, Kodachrome, but "Kodak moments" will live on in space

Posted by Emily Lakdawalla on 2010/12/31 08:04 CST

This week is the end for Kodachrome film. It's a casualty of the digital revolution.

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365 Days of Astronomy Podcast: Small Worlds

Posted by Emily Lakdawalla on 2010/12/27 03:56 CST

Today the 365 Days of Astronomy podcast aired my contribution, Small Worlds, about the smaller denizens of the solar system visited in the past year, and due to be visited in the next.

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Mimas wanders in to view

Posted by Emily Lakdawalla on 2010/12/21 02:53 CST

Cassini's busy downlinking photos from yesterday's close pass by Enceladus, including some neat shots of Dione and this one where Mimas skipped briefly in to the field of view.

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Jupiter's outbreak is spreading

Posted by Emily Lakdawalla on 2010/11/22 11:03 CST

Jupiter, always a pretty sight in the sky, is now worth visiting every day; the "outbreak" that heralds the return of Jupiter's formerly red, now fadedsouth equatorial belt is expanding and multiplying.

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Deep Impact at Hartley 2: Two weeks after the flyby

Posted by Emily Lakdawalla on 2010/11/18 01:52 CST

Today the Deep Impact/EPOXI science team held a press briefing that followed up on their very successful flyby of two weeks ago, a status report on what they can say so far about the science that's coming out of the encounter.

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Asteroids and comets to scale, including Hartley 2

Posted by Emily Lakdawalla on 2010/11/18 10:52 CST | 1 comments

Just in time for today's Deep Impact press briefing, which you can watch on NASA TV in a few minutes: I've updated my montage of all the asteroids and comets that have been visited and photographed to include Hartley 2.

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An awesome animation of Jupiter's clouds

Posted by Emily Lakdawalla on 2010/11/09 02:18 CST

Ready to see something beautiful? Here's a team effort by Björn Jónsson and Ian Regan to create a really mesmerizing view of the motions of Jupiter's clouds.

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Hartley 2 compared to other comets, and in motion 3D

Posted by Emily Lakdawalla on 2010/11/05 06:17 CDT

I had to catch up with tasks left undone at home today and didn't have time to write up my notes from the Hartley 2 press briefing, for which I apologize. I'll leave you for the weekend with three cool Hartley 2 pictures.

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Animation of the five closest-approach Hartley 2 images

Posted by Emily Lakdawalla on 2010/11/04 11:24 CDT

Those of you who follow my blog must have known this was coming: now that I got all five new Deep Impact images of Comet Hartley 2 posted and explained, I had to make an animation. Here they are.

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Five close-approach images of Hartley 2 by Deep Impact, with commentary

Posted by Emily Lakdawalla on 2010/11/04 10:58 CDT

Here's the five close-approach images of Hartley 2 captured today, November 4, 2010, by the Deep Impact spacecraft, collected into one file. Boy, do these images reward close examination!

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Close approach images of Hartley 2!

Posted by Emily Lakdawalla on 2010/11/04 10:24 CDT

What a dramatic and cool photo! An asteroid with two lobes like Borrelly, lumpy and bouldery like Itokawa, with gorgeous active jets, dramatically lit. Well done, Deep Impact team!

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Pretty picture: Three moons of Saturn

Posted by Emily Lakdawalla on 2010/10/29 12:08 CDT

The Cassini Raw Images Website always offers rewards to the browser. This evening I found the raw images necessary to create this color composite, showing the hazy orange moon Titan, the mid-sized icy moon Dione, and the tiny rock Prometheus all at the same time.

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An update to the Cassini Tour Page

Posted by Emily Lakdawalla on 2010/10/27 11:24 CDT

Where's the Cassini Saturn orbiter going to be in the next week -- or hundred weeks? It's all already planned out.

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DPS 2010: Pluto and Charon opposition surges, Nix and Hydra masses, Pluto and Eris compositions

Posted by Emily Lakdawalla on 2010/10/25 11:18 CDT

An awful lot of the talks in the Pluto session on Tuesday morning, October 5, at the Division of Planetary Sciences meeting spent more time focusing on how bad weather conditions were during the astronomers' attempts to view Pluto as it occulted background stars than they did on any measurements or science that came out from the data.

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