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Latest Guest Blog Posts

The YORP Effect and Bennu

Posted by Dante Lauretta on 2014/12/11 05:48 CST

The YORP effect is a phenomenon that affects the rotation rate and pole orientation of an asteroid. YORP is an acronym that combines four scientist’s names: Yarkovsky, O’Keefe, Radzievskii, and Paddack.

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Revisiting Uranus with Voyager 2

Posted by Björn Jónsson on 2014/12/10 10:44 CST | 2 comments

Amateur image processor Björn Jónsson brings us some new views of Uranus from reprocessed Voyager 2 data.

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What Happens When Space Projects Go Over Budget? The Curious Case of MSL’s Overrun

Posted by Jason Callahan on 2014/12/08 04:44 CST | 3 comments

Jason Callahan takes a detailed look at the effects of Curiosity's cost overruns on NASA's budget.

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New Views of Ancient Martian Landscapes

Posted by Bill Dunford on 2014/12/08 11:21 CST | 5 comments

The Mars Reconnaissance Orbiter just keeps delivering remarkable scenes from the Red Planet.

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Mars Exploration Rovers Update: Opportunity Roves from Wdowiak Ridge into Network of Fractures

Posted by A.J.S. Rayl on 2014/12/03 12:13 CST | 1 comment

Last month, the Earth's longest-lived and most traveled robot on another planet drove into a network of fractures the likes of which the scientists had never seen before on Mars and wound up working there through the end of the month – and then something not completely unexpected happened.

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Selecting the Next Creative Idea for Exploring the Solar System

Posted by Van Kane on 2014/12/01 07:39 CST

With the release of the official Announcement of Opportunity (AO) early in November, NASA has officially begun the competition to select its next low cost ($450M) Discovery program planetary mission. Because planetary scientists are free to propose missions to any destination in the solar system other than the sun and Earth, these competitions bring out the creativity in the planetary science program.

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Dawn Journal: Looking Ahead at Ceres

Posted by Marc Rayman on 2014/12/01 02:51 CST | 1 comment

This month, Marc Rayman looks ahead to some upcoming activities for Dawn as it approaches the dwarf planet Ceres.

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Some Recent Views of Mars from Hubble

Posted by Ted Stryk on 2014/11/26 04:50 CST

Ted Stryk showcases some of his processed versions of recent Hubble Space Telescope views of Mars.

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A Rich Potpourri of Future Mission Concepts

Posted by Van Kane on 2014/11/26 05:01 CST

The past few months have brought announcements for new missions from India and China as well as a wealth of creative ideas for future missions.

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The Science of “Bennu’s Journey”

Posted by Dante Lauretta on 2014/11/25 06:17 CST

The OSIRIS-REx project released Bennu’s Journey, a movie describing one possible history of our target asteroid – Bennu. The animation is among the most highly detailed productions created by Goddard’s Conceptual Image Laboratory.

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