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Doug Ellison

Doug Ellison

Latest Planetary Radio Appearance

Public Outreach and Amateurs in Space!

09/29/2008 | 0:28:52
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Public Outreach and Amateurs in Space!

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Latest Blog Posts

Europlanet : Life's a bleach

Posted 2007/08/24 10:30 CDT | 0 comments

Europlanet : Life's a bleach

Europlanet : RADAR views of Titanian Geology

Posted 2007/08/24 05:38 CDT | 0 comments

Europlanet : RADAR views of Titanian Geology

Europlanet : Swings and Roundabouts with Rings

Posted 2007/08/24 02:48 CDT | 0 comments

Europlanet : Swings and Roundabouts with Rings

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Latest Processed Space Images

Spirit explores Home Plate

Spirit explores Home Plate

Posted 2013/05/19 | 0 comments

More than a year of Spirit's examination of the feature in Gusev Crater known as Home Plate is chronicled in this animation of nine images from the HiRISE camera on Mars Reconnaissance Orbiter. The images cover an area approximately 100 meters square. The geometry of Home Plate appears to shift from image to image because the orbiter often had to turn to one side or the other of its orbital track across Mars in order to view Spirit, so usually saw the raised topography of Home Plate from a point that was not directly over Spirit's head. However, some of the apparent shifts in features are also real shifts in the distribution of dust around Home Plate with shifting winds and seasons. The global dust storm of 2007 almost completely blocks the view of Spirit at one point during the animation.

At the foot of Husband Hill

At the foot of Husband Hill

Posted 2013/04/08 | 0 comments

On sol 182, Spirit looked back at tracks she made at the foot of the Columbia Hills, exploring rocks named "End of the Rainbow," "Pot of Gold," "Jaws," and "Shredded," among others.

Galileo view of an Earth-Moon conjunction

Galileo view of an Earth-Moon conjunction

Posted 2013/02/13 | 0 comments

As Galileo receded from its ssecond flyby of Earth on December 16 and 17, 1992, it captured this sequence of Earth rotating as the Moon zipped by on its orbit. There are 56 frames in total, each separated by 15 minutes, spanning about 14 hours.

More pictures processed by Doug Ellison »

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