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Blog Archive


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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The Voyager Mission Updates

Posted by Emily Lakdawalla on 2010/09/14 01:39 CDT

We take for granted now the ability to get detailed mission updates in a timely fashion via the Web. But How did people get their mission status before the Web?

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Neptune from two slightly different perspectives

Posted by Emily Lakdawalla on 2010/09/06 10:39 CDT

Coincidentally, two new images of Neptune were posted today, from two very different sources.

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How to Recognize Titan from Quite a Long Way Away

Posted by Emily Lakdawalla on 2010/08/09 05:16 CDT

You know, I could fill this blog almost entirely with the amazing images that Gordan Ugarkovic locates, processes into prettiness, and uploads to his Flickr account.

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The enigmatic mounds of Acidalia Planitia

Posted by Emily Lakdawalla on 2010/08/04 04:18 CDT

Acidalia Planitia is a large basin in Mars' northern lowlands, a dark splotch visible even from Earth telescopes.

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Goodies from the latest Cassini data release

Posted by Emily Lakdawalla on 2010/08/02 05:50 CDT

I've spent a pleasurable hour or so browsing over the latest release of images from Cassini to the Planetary Data System.

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Voyager at Saturn, one year later

Posted by Emily Lakdawalla on 2010/07/27 02:04 CDT

Here are two newly processed portraits of Saturn, showing the planet just after its equinox.

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Watching the birth and death of moonlets in Saturn's F ring

Posted by Emily Lakdawalla on 2010/07/22 09:09 CDT

The Saturn system is always in motion, always changing. Saturn itself is a gas giant, with swirling storms, and like the other gas giants it has a host of moons flying around, perturbing each other's motions. And then there's the rings.

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Color portrait of asteroid 21 Lutetia

Posted by Emily Lakdawalla on 2010/07/21 04:28 CDT

Since it doesn't look like the Rosetta mission is going to be releasing any color versions of their Lutetia close-encounter images any time soon, I figured it was time to make one.

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Volcanism across the solar system: Io

Posted by Emily Lakdawalla on 2010/07/20 05:33 CDT

Three months ago, grandiosely, I announced that I was going to survey volcanism across the solar system, and I began the journey on Earth. Then I failed to follow up.

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Cassini eyes Janus

Posted by Emily Lakdawalla on 2010/07/13 01:56 CDT

Four times a year, the Cassini mission releases three months' worth of data gathered from Saturn and its moons to NASA's Planetary Data System.

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Rosetta's Lutetia pictures

Posted by Emily Lakdawalla on 2010/07/11 12:17 CDT

I saw these pictures for the first time just 10 minutes before boarding my flight back home, and forced myself to download everything I could find as quickly as possible without pausing to actually look at them.

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Lutetia -- and Saturn!!

Posted by Emily Lakdawalla on 2010/07/10 04:32 CDT

A quick post of just one of the gorgeous images from Rosetta's flyby of Lutetia today; for more, see the Rosetta Blog. But this one was just too pretty to wait for.

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Rosetta Lutetia flyby successful; approach images posted; high-res images yet to come

Posted by Emily Lakdawalla on 2010/07/10 01:47 CDT

All appears to be going very smoothly on Rosetta through, and after, its flyby today of asteroid (21) Lutetia.

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Hubble turns 20

Posted by Emily Lakdawalla on 2010/04/23 03:02 CDT

Tomorrow is the 20th anniversary of the launch of the Hubble Space Telescope. It's hard to believe it's been going strong for so many years.

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A feast of pretty pictures from Cassini

Posted by Emily Lakdawalla on 2010/04/12 01:28 CDT

Cassini has it almost too easy. Point at anything in the Saturn system and you're guaranteed of a shot that looks, at least, pretty.

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A busy day for Cassini: Dione plus bonus Enceladus and Janus

Posted by Emily Lakdawalla on 2010/04/08 12:39 CDT

The Cassini Saturn orbiter just completed its second very close flyby of Saturn's mid-sized iceball moon Dione, and the images from that encounter have been streaming onto the Cassini raw images website this morning.

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The far side of Phobos

Posted by Emily Lakdawalla on 2010/03/16 09:47 CDT

Now here is an unusual image of Phobos, Mars' moon.

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