Mars as Planetary Embryo (IMAGE)

University of Chicago

Mars as Planetary Embryo

Caption

Mars measures approximately 6,794 kilometers (4,221 miles) in diameter. Earth, with a diameter of 12,750 kilometers (7,926 miles) grew to almost twice the size of Mars via collisions with smaller planetary embryos. Mars is a planetary embryo that escaped such collisions, scientists report in the May 25, 2011, issue of the journal Nature.

Credit

National Aeronautics and Space Administration/Jet Propulsion Laboratory

Usage Restrictions

News organizations may use this image in connection with reports about the Mars research of Nicolas Dauphas and Ali Pourmand.

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