Barnacle Bill (Martian rock)

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Barnacle Bill Rock
Sojourner and Barnacle Bill.jpg
Sojourner Rover next to the "Barnacle Bill" rock
Feature type Rock
Coordinates 19°20′N 33°33′W / 19.33°N 33.55°W / 19.33; -33.55Coordinates: 19°20′N 33°33′W / 19.33°N 33.55°W / 19.33; -33.55

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[edit]

External links[edit]

Notable rocks on Mars
Adirondacksquare.jpg
PIA00819left-MarsRock-BarnacleBill.gif
PIA14762-MarsCuriosityRover-BathurstInletRock.jpg
MarsViking1Lander-BigJoeRock-19780211.jpg
Block Island.jpg
58606main image feature 167 jwfull.jpg
MarsCuriosityRover-CoronationRock-N165-20120817-crop.jpg
El Capitan sol27 pancam.jpg
Adirondack
(Spirit)
Barnacle Bill
(Sojourner)
Bathurst Inlet
(Curiosity)
Big Joe*
(Viking)
Block Island
(Opportunity) M
Bounce
(Opportunity)
Coronation
(Curiosity)
El Capitan
(Opportunity)
PIA17074-MarsOpportunityRover-EsperanceRock-20130223-fig1.jpg
PIA16187-MarsCuriosityRover-GoulburnRock-20120817-crop.jpg
PIA07269-Mars Rover Opportunity-Iron Meteorite.jpg
PIA09089-RA3-hirise-closeup annotated.png
PIA17062-MarsCuriosityRover-HottahRockOutcrop-20120915.jpg PIA16192-MarsCuriosityRover-Target-JakeRock-20120927.jpg
PIA05482 modest.jpg
NASA Curiosity rover - Link to a Watery Past (692149main Williams-2pia16188-43).jpg
Esperance*
(Opportunity)
Goulburn
(Curiosity)
Heat Shield
(Opportunity) M
Home Plate
(Spirit)
Hottah
(Curiosity)
Jake Matijevic
(Curiosity)
Last Chance
(Opportunity)
Link
(Curiosity)
Mackinac Island.jpg
Mars rock Mimi by Spirit rover.jpg
PIA13418 - Oileán Ruaidh meteorite on Mars (false colour).jpg
Pot of gold upclose.jpg
PIA16452-MarsCuriosityRover-Rocknest3Rock-20121005.jpg
391243main-MarsRover-ShelterIslandMeteorite-20091002-crop.jpg
PIA16795-MarsCuriosityRover-TintinaRock-Context-20130119.jpg
NASA-MarsRock-Yogi-SuperRes.jpg
Mackinac Island
(Opportunity) M
Mimi*
(Spirit)
Oileán Ruaidh
(Opportunity) M
Pot of Gold
(Spirit)
Rocknest 3
(Curiosity)
Shelter Island
(Opportunity) M
Tintina
(Curiosity)
Yogi
(Sojourner)
|(Notes: * = links to relevant article; M = Meteorite)