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Latest Guest Blog Posts

Dawn Journal: Ceres Orbit Insertion!

Posted by Marc Rayman on 2015/03/06 10:32 CST | 8 comments

Dawn's Chief Engineer, Marc Rayman, gives an update on the mission's highly anticipated arrival at Ceres.

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Seeing Ceres: Then and Now

Posted by Paul Gilster on 2015/03/06 09:33 CST | 1 comment

Technology writer Paul Gilster shares his interest in how we depict astronomical objects, focusing on the dwarf planet Ceres.

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Venus From 33 Years Ago, and Why We Need to Explore

Posted by Ted Stryk on 2015/03/05 02:41 CST | 1 comment

Thirty-three years ago today, Venera 14 plunged through the thick Venusian atmosphere to the surface. Ted Styrk shares some of his processed images from the Venera lander missions to Venus—and makes a plea for us to return.

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Mars Exploration Rovers Update: Opportunity Discovers New Rock Type, Updates Flight Software

Posted by A.J.S. Rayl on 2015/03/05 12:16 CST

From the discovery of a new rock type to a successful flight software upload that should enable the robot field geologist to regain her long-term, flash memory, Opportunity and her team delivered what turned out to be a hugely productive and memorable 133rd month on the Red Planet.

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Understanding why our most Earth-like neighbor, Venus, is so different

Posted by Van Kane on 2015/03/02 12:43 CST | 3 comments

Van Kane introduces us to EnVision—a proposed European mission to help improve our understanding of Venus.

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Pluto Science, on the Surface

Posted by Alan Stern on 2015/02/27 02:39 CST | 5 comments

New Horizons' Principal Investigator Alan Stern gives an update on the mission's progress toward Pluto.

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Dawn Journal: Ceres' Deepening Mysteries

Posted by Marc Rayman on 2015/02/25 02:00 CST | 15 comments

Even as we discover more about Ceres, some mysteries only deepen. Mission Director Marc Rayman gives an update on Dawn as it moves ever closer to its next target.

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Clouds and Chasmata

Posted by Bill Dunford on 2015/02/23 10:03 CST | 2 comments

New landscapes from Mars Express.

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Our Global Volunteers: February 2015 Update

Posted by Kate Howells on 2015/02/19 04:45 CST

The Planetary Society has amazing volunteers doing outreach work around the globe. Check out what they've been up to recently!

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Mapping Europa

Posted by Björn Jónsson on 2015/02/18 01:38 CST | 2 comments

Several global maps have been made of Europa, but amateur image processor Björn Jónsson felt they could be improved—so he decided to make a new one.

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