Start Date: End Date: Published Date Data Date
Mars and Earth: Columnar Jointing
720 x 360 JPEG
Published June 10, 2009
Although Mars is in many ways quite different from Earth—smaller, colder, drier, and hostile to life—the geology of the two worlds is sometimes quite similar. Columnar jointing—a distinctive pattern of hexagonal cracks—is visible in rocks on both planets.
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