Yogi Rock

Yogi Rock is a rock on Mars that was discovered during the Mars Pathfinder mission in 1997,^[1][2] and named by Geoffrey A. Landis. The rocks found on the mission were named after famous icons and figures, and Yogi Rock was thought to resemble the head of a bear looking away from the spacecraft. As a result, it was named for the famed cartoon character Yogi Bear.

The rock was the first on Mars found to be made of basalt, which suggests previous volcanic activity in the region as basalt is an igneous rock. The smoothness of the surface also suggested the past existence of water in the region. Yogi was also the first large rock reached by the Sojourner rover and was analyzed by an alpha proton X-ray spectrometer to determine its composition.

Images of Sojourner approaching Yogi used in the opening credits of Star Trek: Enterprise made that television program the first science fiction television or film production in history to use footage taken on another planet.

• 
  Sojourner going to Yogi Rock (circled).
• 
  Mars Pathfinder rover Sojourner at "Yogi" rock.

See also

• List of rocks on Mars

References

External links

• NASA Astronomy Picture of the Day: Yogi Rock on Mars (9 March 1998)
• CNN article on Mars landing

Notable rocks on Mars

Adirondack (Spirit)	Barnacle Bill (Sojourner)	Bathurst Inlet (Curiosity)	Big Joe* (Viking)	Block Island (Opportunity) M	Bounce (Opportunity)	Coronation (Curiosity)	El Capitan (Opportunity)
Esperance* (Opportunity)	Goulburn (Curiosity)	Heat Shield (Opportunity) M	Home Plate (Spirit)	Hottah (Curiosity)	Jake Matijevic (Curiosity)	Last Chance (Opportunity)	Link (Curiosity)
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: * = linked article is about the mission that encountered this rock; M = Meteorite - ()