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Blog Archive

 

A Tour of 67P...

Posted by Stuart Atkinson on 2014/09/23 05:58 CDT | 4 comments

Stuart Atkinson takes us on a stunning guided visual tour of Comet 67P/Churyumov–Gerasimenko.

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One Day on Mars

Posted by Bill Dunford on 2014/07/21 08:03 CDT | 3 comments

A single day's observations take us from orbital overviews all the way down to ground truth.

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Voyager 3 Project

Posted by Peter Rosén on 2014/07/08 02:15 CDT | 3 comments

In 1979, the Voyager 1 probe took a stunning series of images on its final approach to Jupiter. Thirty-five years later, almost to the day, a group of seven Swedish amateur astronomers set out to replicate this odyssey, but with images taken with their own ground-based telescopes.

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A Spin Through the Inner Solar System

Posted by Bill Dunford on 2014/02/24 09:57 CST | 1 comments

Animated maps of the planets show the spheres in motion.

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The Two Faces of Phoebe

Posted by Daniel Macháček on 2014/02/13 10:03 CST | 7 comments

Cassini flew past Phoebe on June 11, 2004, on its way to entering Saturn orbit. The flyby was almost perfect but overexposure of some images have prevented color mosaics from being produced. Even though Phoebe's body is gray and dull in color, the absence of color images always provoked me. By using VIMS data, I have now produced color mosaics.

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The Faces of Mars

Posted by Bill Dunford on 2014/02/03 10:49 CST | 5 comments

Portraits of a planet.

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NASA re-creates the Apollo 8 Earthrise using Lunar Reconnaissance Orbiter data

Posted by Andrew Chaikin on 2013/12/20 02:20 CST | 1 comments

If there's one thing I've learned after decades of studying the first human voyages to another world, it's that there is always more to discover about Apollo. Case in point: The Apollo 8 Earthrise photo that became one of the iconic images of the 20th century.

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Pretty picture: newly processed high-res view of a fractured icy moon, Dione

Posted by Emily Lakdawalla on 2013/12/04 11:38 CST | 4 comments

Here's a lovely new view of Dione, one of the lovely mid-sized icy moons of Saturn, assembled by Daniel Macháček.

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One for the history books: Stunning Saturn mosaic captured last week by Cassini

Posted by Emily Lakdawalla on 2013/10/16 07:15 CDT | 5 comments

I try to be measured in my praise for spacecraft images. Not every photo can be the greatest space image ever. But this enormous mosaic showing the flattened globe of Saturn floating within the complete disk of its rings must surely be counted among the great images of the Cassini mission.

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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?

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Chang'E 2 imaging of Toutatis succeeded beyond my expectations!

Posted by Emily Lakdawalla on 2012/12/14 05:59 CST | 19 comments

The Chang'E 2 mission flyby of Toutatis succeeded in acquiring images. Oh my goodness, did they succeed. These, in combination with the incredible radar images still being acquired from Goldstone and innumerable optical observations, make Toutatis one of the best-studied asteroids in the solar system.

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Watching the slow shift of seasons on Titan

Posted by Emily Lakdawalla on 2012/11/06 02:45 CST | 1 comments

A sharp-eyed amateur noticed two images of Titan taken 20 months apart from nearly exactly the same perspective, and they illustrate how the shifting of Saturn's seasons has brought change to Titan's atmosphere.

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A huge color global view of Dione

Posted by Emily Lakdawalla on 2012/10/23 02:33 CDT

From the Cassini data archives comes a huge (5000 pixels square!) color image of Saturn's icy moon Dione, worth investigating from both near and far.

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A Voyager 1 anniversary mosaic

Posted by Björn Jónsson on 2012/09/06 11:58 CDT

Back in 1979 the twin Voyager 1 and 2 spacecraft flew by Jupiter. Some of their images were processed into color images and mosaics that have appeared countless times in books, magazines, on TV and on the Internet. Many of these images and mosaics are spectacular but they were processed more than 30 years ago using computers that are extremely primitive by today's standards. It's possible to get better results by processing the original, raw images from the Voyagers using modern computers and software.

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Cure for the blues: processing images of a blue planet

Posted by Emily Lakdawalla on 2012/09/06 01:00 CDT

I noticed today that I hadn't seen any amateur-processed versions of Voyager's departing shots of Uranus, so I decided to give it a try.

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Pretty picture: Meet Tethys

Posted by Emily Lakdawalla on 2012/06/20 02:40 CDT

Just a pretty global view of one of Saturn's flock of icy moons, newly processed from archival data by Gordan Ugarkovic.

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Steins, a jewel in the asteroid belt

Posted by Emily Lakdawalla on 2012/06/13 09:00 CDT | 1 comments

A notice of some new names for features on asteroid 2867 Steins inspired me to dig up the data set from the September 5, 2008 Rosetta flyby and explore it to see what it contained.

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Methone, an egg in Saturn orbit?

Posted by Emily Lakdawalla on 2012/05/21 02:58 CDT | 8 comments

Cassini obtained its first high-resolution images of Methone on May 20, 2012. Methone is one of the smallest regular moons of Saturn, having a diameter of only about 3 kilometers. It was the first moon that Cassini discovered, very early in Cassini's mission at Saturn, in 2004.

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Ski Helene?

Posted by Emily Lakdawalla on 2012/04/20 01:01 CDT | 2 comments

I enthused about these Helene images the first time they came down from Cassini, and then forgot about them, and then was thrilled anew a couple of weeks ago when Daniel Macháček posted his version, processed from data published by the Cassini imaging team on April 1.

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Pretty pictures from Cassini's weekend flybys of Enceladus and Tethys

Posted by Emily Lakdawalla on 2012/04/16 03:11 CDT

Cassini flew past both Enceladus and Tethys on April 14. Here's a cool animation of its approach to Enceladus' plumes, and a pretty global picture of Tethys.

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