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Barnacle Bill (Martian rock)

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Title: Barnacle Bill (Martian rock)  
Author: World Heritage Encyclopedia
Language: English
Subject: Transit of Venus from Mars, Mars Pathfinder, Asopus Vallis, Ganges Mensa, Moons of Mars
Collection: Mars Pathfinder, Rocks on Mars
Publisher: World Heritage Encyclopedia
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Barnacle Bill (Martian rock)

Barnacle Bill is a 40-centimetre (16 in) rock on Mars in Ares Vallis. It was the first rock on Mars analyzed by the Sojourner rover using its Alpha Proton X-ray Spectrometer. The encounter occurred during Sol 3 of the Mars Pathfinder mission on the surface of Mars and took ten hours to complete.

"Barnacle Bill" rock - close-up

Early analysis of data sent from Sojourner led scientists to speculate that the rock was andesite.

The name was inspired in mission scientists by barnacle-like structures on the rock that appeared in transmitted photos.

See also

External links

  • Mars Pathfinder Science Results
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