This image of the rock called "Humphrey" was taken by Spirit's navigational camera on its 54th sol on Mars. The rock's name was inspired by Humphries Peak - the tallest peak in Arizona and part of the San Francisco volcanic complex. Standing approximately .6 meters (about 2 feet) tall, "Humphrey" is one of the largest blocks of what scientists believe is ejected material from one of the rover's long-term targets, the crater dubbed "Bonneville." Likely a basaltic rock, the fractures in "Humphrey" are though Humphrey Mars

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Photo credit: © NASA Image Collection / Alamy / Afripics
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Keywords: astronomy, copy, editorial, humphrey, mars, nasa, news, night, photograph, photography, rocket, sky, space, stock