artist concept of ExoMars
Artist's concept of the European Space Agency's ExoMars Mission.
An investigation selected by NASA will help researchers dissect the internal structure of Mars by analyzing variations in the planet's rotation. William Folkner of NASA's Jet Propulsion Laboratory is the principal investigator for this project.

For more information, go to the NASA press release at http://www.nasa.gov/home/hqnews/2009/may/HQ_C09_020_NASA_Salmon_Awards.html .

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