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Blog Archive

 

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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In a New Light

Posted by Bill Dunford on 2013/04/15 02:08 CDT | 3 comments

Cassini's unique views of Jupiter and Saturn.

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One Day in the Solar System

Posted by Bill Dunford on 2013/04/08 09:12 CDT | 4 comments

Dispatches from five different worlds--all sent by robotic spacecraft on the same day.

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The Stormscapes of Saturn

Posted by Bill Dunford on 2013/03/04 12:25 CST | 2 comments

Look past the rings, and Saturn is even stranger--and more breathtaking.

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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.

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That amazing image of Saturn's north pole just got better: now, it moves!

Posted by Emily Lakdawalla on 2012/11/28 11:27 CST | 2 comments

Remember the amazing photo of Saturn's north pole that I posted yesterday? Now, thanks to an amateur image processor, it moves, and the motions of the individual clouds within the belts are mesmerizing.

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Staring into Saturn's baleful eye

Posted by Emily Lakdawalla on 2012/11/27 11:12 CST | 12 comments

Amazing photos have just come back from Cassini, of swirling clouds surrounding Saturn's north pole.

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Happy Cassini PDS Release Day!

Posted by Emily Lakdawalla on 2012/10/08 01:00 CDT | 2 comments

It's a quarterly feast day for me: the day that the Cassini mission delivers three months' worth of data to NASA's Planetary Data System. Here's a few images processed from the October 1, 2012 data release.

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A couple of gems from the archives

Posted by Emily Lakdawalla on 2012/09/10 11:07 CDT | 2 comments

We're still working on migrating content from the old to the new website. This week, that means I am looking, one by one, through some great amateur-processed space images.

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Saturn's still there

Posted by Emily Lakdawalla on 2012/08/22 07:01 CDT | 8 comments

A pretty picture of Cassini's current view of Saturn.

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Daphnis cruises through the Keeler Gap

Posted by Jason Davis on 2012/08/16 11:03 CDT

A recent series of ring images by the Cassini spacecraft reveal Saturn's tiny moon Daphnis cruising through the Keeler Gap.

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Video: Saturn makes its own drama (with a little help)

Posted by Emily Lakdawalla on 2012/05/22 05:43 CDT | 5 comments

The apparently simple device of running Cassini images together like a flipbook makes for a dramatic movie, especially with the help of well-timed musical cues.

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Full Free Intro Astronomy Class Now Online

Posted by Bruce Betts on 2012/05/22 02:57 CDT | 1 comment

Bruce Betts' complete CSUDH Intro Astronomy and Planetary Science class is now available online. Find out how to access it, and go behind the scenes.

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Pretty pictures from Cassini's recent Dione flyby

Posted by Emily Lakdawalla on 2012/05/04 05:44 CDT

Cassini performed its last of three close encounters with Enceladus for 2012 two days ago, and followed the flyby with some spectacular images of Dione.

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Pretty picture: A study in ringlight

Posted by Emily Lakdawalla on 2012/03/08 02:27 CST

Clearly, this is Saturn, and its rings, and if you look closer you can see a tiny circle, on top of the rings, which is Mimas, and two stars in the background. It should look weird to you that while the rings are bright, Mimas is a black dot. What is happening here? Nearly everything in this picture is lit by light that has not arrived directly from the Sun.

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Checking up on Jupiter and Saturn

Posted by Emily Lakdawalla on 2012/02/10 01:51 CST

It's amateur astronomers, not professionals, who are shouldering the burden of constant monitoring of the weather on Jupiter and Saturn. What's going on these days in the outer solar system?�

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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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Notes from Day 5 of the EPSC/DPS meeting: Saturn's storm, Phobos, and Lutetia

Posted by Emily Lakdawalla on 2011/10/07 07:09 CDT

Today was (is) the last day of the Division of Planetary Sciences / European Planetary Science Congress meeting in Nantes, France.

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Scale solar system presentation slide, a provisional version for you to review

Posted by Emily Lakdawalla on 2011/09/15 02:18 CDT

I'm preparing a talk for the Pacific Astronomy and Telescope Show here in Pasadena on Sunday afternoon at 1:45. I have spent the morning putting together a slide that I have long wanted to have for presentations.

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Outside In

Posted by Bill Nye on 2011/09/07 02:05 CDT | 1 comment

Outside In, a film made from real space images that takes you on a soaring journey past our nearby worlds.

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