The Dawn spacecraft, modeled in an unlikely medium
Posted by Emily Lakdawalla on 2012/01/13 12:25 CST
Phobos-Grunt's upcoming demise: what we know and what we don't
Posted by Bruce Betts on 2012/01/13 10:35 CST
We explore space for the noblest goals of science and exploration, and we often persevere in spite of challenges. But space exploration is fraught with bad things happening, or, to use the technical term, ouchies. The Planetary Society's Phobos LIFE biomodule will re-enter the Earth's atmosphere in the next few days with the rest of the Phobos-Grunt mission.
Posted by Emily Lakdawalla on 2012/01/12 04:33 CST
Evaporites form on planetary surfaces when dissolved chemical solids precipitate out of saturated solution as their liquid solvent evaporates and, until recently, were known to exist only on Earth and Mars. This article from the IAG Planetary Geomorphology Working Group describes the third planetary instance of evaporite, discovered on Saturn's moon Titan.
Posted by Emily Lakdawalla on 2012/01/12 03:15 CST
Fraser Cain at Universe Today has organized a weekly Space Hangout that happens at 1800 UTC on Thursdays. This week's conversation focuses on news on exoplanets and dark matter coming out of the American Astronomical Society meeting happening this week in Austin, as well as a Dawn update.
Posted by Emily Lakdawalla on 2012/01/11 12:29 CST
The Google Doodle for January 11, 2012 celebrates Nicholas Steno, one of the founding fathers of modern geology, on the occasion of his 374th birthday. This article describes Steno's set of rules that guide geologists in reading rocks to tell the story of how a place came to be and how the rules are currently used in geology.
Posted by Emily Lakdawalla on 2012/01/10 06:33 CST
January 10, 2012 was a high-stress day for many in the world of planetary geology: the deadline for submission of abstracts for the 2012 Lunar and Planetary Science Conference (LPSC). One creative coping mechanism for the stress of completing the LPSC abstract submission process is the tradition of capturing the essence of one's work in the seventeen syllables of the Haiku form.
Posted by Jason Davis on 2012/01/09 05:54 CST
As of November 2011, the Earth Observing Handbook counts 109 active missions to study the Earth as a planet, with 112 more approved and planned for the future. Jason Davis provides an overview of key current and upcoming earth-observing missions.
Posted by Marc Rayman on 2012/01/09 03:53 CST
The Dawn mission's Project System Engineer Marc Rayman reports that Dawn concluded 2011 more than 40 thousand times nearer to Vesta than it began the year. It is now at its lowest altitude of the mission, conducting a detailed exploration of the protoplanet and continuing to make new discoveries.
Posted by Emily Lakdawalla on 2012/01/09 11:23 CST
A recent view from Cassini of Saturn with its largest moon (Titan) and one of its small ringmoons, Prometheus.
Posted by Jim Bell on 2012/01/09 11:15 CST
It's the best of times for Mars exploration because we've got three orbiters and a rover studying the Red Planet. It's also the worst of times for my Russian, European, and Chinese colleagues who were part of the Phobos-Grunt mission.
Posted by Mat Kaplan on 2012/01/02 02:07 CST
How Spacecraft Make Color Pictures--Emily's Slides From the December, 2011 Planetary Radio Live