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Latest Guest Blog Posts

New Horizons: Encounter Planning Accelerates

Posted by Alan Stern on 2013/05/17 10:18 CDT | 4 comments

Back in 2005 and 2006, when Pluto’s second and third moons (Nix and Hydra) were discovered, searches by astronomers for still more moons didn’t reveal any. So the accidental discovery of Pluto’s fourth moon by the Hubble Space Telescope in mid-2011 raised the possibility that the hazards in the Pluto system might be greater than previously anticipated.

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Field Report From Mars: Sol 3310- May 17, 2013

Posted by Larry Crumpler on 2013/05/17 11:27 CDT

Opportunity has finally completed the detailed survey of the outcrops on the Cape York segment of the rim of the 22-km diameter Endeavour crater.

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Connecting scientist mentors with students who have the desire to learn

Posted by Caleph Wilson on 2013/05/16 02:38 CDT | 9 comments

Caleph Wilson provides examples and guidance to scientists wishing to mentor students in science, technology, engineering, and math outreach programs.

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ISIS: Blasting a Crater on Asteroid Bennu

Posted by Van Kane on 2013/05/16 08:00 CDT | 2 comments

An exciting new option to enhance NASA's OSIRIS-REx asteroid mission has been proposed by Steve Chesley at JPL. The ISIS spacecraft would impact asteroid Bennu to expose its interior structure to OSIRIS-REx.

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Doing a science on Titan

Posted by Sarah Hörst on 2013/05/15 11:55 CDT | 12 comments

A tale from the scientific trenches: laboratory work to simulate Titan's rich atmosphere.

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Soyuz capsule carrying Hadfield and company lands safely in Kazakhstan

Posted by Jason Davis on 2013/05/14 11:15 CDT | 2 comments

A Soyuz capsule carrying Roman Romanenko, Chris Hadfield and Tom Marshburn landed safely in Kazhakstan after 146 days in space.

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Dueling Desolations: Mercury vs. the Moon

Posted by Bill Dunford on 2013/05/13 01:02 CDT | 7 comments

They look so similar they can be hard to tell apart, but each hides its own mysteries.

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Station suffers ammonia leak; Saturday spacewalk likely (rolling updates)

Posted by Jason Davis on 2013/05/10 01:25 CDT | 2 comments

Following an ammonia leak reported Thursday morning, NASA is planning a spacewalk to investigate a radiator on the P6 truss.

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Mars Exploration Rovers Update: Opportunity Emerges from Solar Conjunction to Wrap-Up Work on Matijevic Hill

Posted by A.J.S. Rayl on 2013/05/02 03:15 CDT | 1 comments

As the Mars Exploration Rover (MER) team waited out solar conjunction, Opportunity spent most of April atop the western rim of Endeavour Crater, conducting a chemical analysis of an ancient waterborne vein on Matijevic Hill. It was by the book until the last week of the month when the robot field geologist suffered an electronic "hiccup" known as a warm re-boot, and went into auto mode, a kind of safe mode when something doesn't go right.

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Dawn journal: A low-orbit shortcut to Ceres

Posted by Marc Rayman on 2013/05/02 02:11 CDT

Marc Rayman's latest Dawn journal explains why Dawn is currently closer to the Sun than both Ceres and Vesta.

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