Space Images For Students
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heart-shaped feature on Mars
Mars Happy Valentine's Day From Mars
This picture of a heart-shaped feature in Arabia Terra on Mars was taken on May 23, 2010, by the Context Camera on NASA's Mars Reconnaissance Orbiter spacecraft.

A small impact crater near the tip of the heart is responsible for the formation of the bright, heart-shaped feature. When the impact occurred, darker material on the surface was blown away and brighter material beneath it was revealed. Some of this brighter material appears to have flowed further downslope to form the heart shape, since the small impact occurred on the ejecta blanket of a much larger impact crater.
Image credit: NASA/JPL-Caltech/Malin Space Science Systems