Astrogeology Science Center


Serving the nation, the international science community, planetary scientists and the general public in the pursuit of new knowledge about our Solar System.


Glossary of Terms


Date published: February 14, 2020

Io Volcano Observer proposal selected for further study by NASA’s Discovery Program: More Love for Outer Space

On February 13, NASA announced the selection of the Io Volcano Observer as one of the four proposals for future Discovery-class missions to move a step closer to launch later this decade. The good news comes just in time for Valentine’s Day.

Date published: February 11, 2020

Astro looking forward to the upcoming STEM Night on March 9

Mark your calendars for STEM Night at the Northern Arizona University Walkup Skydome in Flagstaff Arizona on March 9, from 5 to 7 pm.  Astrogeology volunteers will be back again this year with STEM activities for everyone. Our community,  as well as the nation,  can always count on us to do our part to help children get excited about STEM.  We're hoping to see you there! 

Date published: February 11, 2020

Sols 2673-2675: Ongoing Analyses at Hutton

Curiosity is parked at the “Hutton” drill site, just below the contact with the overlying Greenheugh pediment.  After a successful drill last week, the rover has been focused on ongoing analyses of the drill sample and further characterization of this site.  


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Year Published: 2019

Walk in the footsteps of the Apollo astronauts: A field guide to northern Arizona astronaut training sites

Every astronaut who walked on the Moon trained in Flagstaff, AZ. In the early 1960s, scientists at the newly formed United States Geological Survey (USGS) Branch of Astrogeology led this training, teaching geologic principals and field techniques to the astronaut crews. USGS scientists and engineers also developed and tested scientific...

Vaughan, R. Greg; Schindler, Kevin; Stevens, Jeanne; Hough, Ian

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Year Published: 2019

Report from the Ice and Climate Evolution Science Analysis group (ICE-SAG)

This document is the final report of the Ice and Climate Evolution Science Analysis Group (ICESAG) that was formed by the Mars Exploration Program Analysis Group (MEPAG) as part of its preparations for the upcoming NASA Planetary Science Decadal Survey for 2023 through 2032 (see §1). Through telecons, one face-to-face meeting, and discussions with...

Putzig, Than; Diniega, Serina; Dundas, Colin M.; Titus, Timothy N.

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Year Published: 2019

Active boulder movement at high Martian latitudes

Lobate stony landforms occur on steep slopes at high latitudes on Mars. We demonstrate active boulder movement at seven such sites. Sub-meter-scale boulders frequently move distances of a few meters. The movement is concentrated in the vicinity of the lobate landforms but also occurs on other slopes. This provides evidence for a new, common style...

Dundas, Colin M.; Mellon, Michael T.; Conway, Susan J.; Gastineau, Renaldo