page_title: List of rocks on Mars
section_title: 1976 – Viking program: Viking 1 and Viking 2 landers
hierarchical_section_title: List of rocks on Mars / 1976 – Viking program: Viking 1 and Viking 2 landers
caption_attribution_description: English: PIA00391: Sand Dunes And Large Rocks Revealed By Camera 1 Target Name:	Mars Is a satellite of:	Sol (our sun) Mission: Viking Spacecraft: Viking Lander 1 Instrument: Camera 1 Produced By: JPL Producer ID: P17428 Primary Data Set:	Viking EDRs Sand dunes and large rocks are revealed in this panorama picture of Mars, the first photograph taken by Viking l's Camera 1 on July 23. The horizon is approximately 3 kilometers (2 miles) away. The left and right thirds of this picture are the same areas that were photographed on July 20 (Sol O) by Camera 2 and provide stereo coverage. The middle third reveals a part of the Martian surface not seen on the July 20 panorama. The late afternoon sun is high in the sky over the left side of the picture. The support struts of the S-band high-gain antenna extend to the top of the picture. The American flags are located on the two RTG (Radioisotope Thermoelectric Generator) wind screens. In the middle third of the picture, the rocky surface is covered by thick deposits of wind-blown material, forming numerous dunes. At the center of the picture on the horizon are two low hills which may be part of the rim of a distant crater. Two very large rocks are visible in the middleground; the nearer one is 3 meters (10 feet) in diameter and is 8 meters (25 feet) from the spacecraft. A cloud layer is visible halfway between the horizon and the top of the picture. The meteorology boom is located right of center. Behind it, the 'White Mesa' is visible, which could be seen on the far left side of the Sol O Camera 2 panorama. In the near ground are numerous rocks about 10 cm (4 inches) across, with horseshoe-shaped scour marks on their upwind side and wind tails in their lee. The fine-grained material in front of them contains small pits formed by impact of material kicked out by the Lander spacecraft's rocket engines.
context_page_description: This is an alphabetical list of named rocks found on Mars, by mission. This list does not include Martian meteorites found on Earth.
  Names for Mars rocks are largely unofficial designations used for ease of discussion purposes, as the International Astronomical Union's official Martian naming system declares that objects smaller than 100 m are not to be given official names. Because of this, some less significant rocks seen in photos returned by Mars rovers have been named more than once, and others have even had their names changed later due to conflicts or even matters of opinion. Often rocks are named after the children or family members of astronauts or NASA employees. The name Jazzy, for example, was taken from a girl named Jazzy who grew up in Grand Junction, CO, USA. Her father worked for NASA and contributed to the findings and naming of the rocks.
context_section_description: Viking 1 Lander – July 20, 1976; Last Earth Contact – November 13, 1982.
  
  Mars landing coordinates: 22.48°N 49.97°W
  Viking 2 Lander – September 3, 1976; Last Earth Contact – April 11, 1980.
  
  Mars landing coordinates: 47.97°N 225.74°W
  (Raw Images - Camera/Sol and 1-JPL and 2-JPL + NASA Image Viewer.)
  Big Joe
  Bonneville
  Delta
  Midas Muffler
  Mr. Badger
  Mr. Moley
  Mr. Rat
  Mr. Toad
  Patch
caption: Panorama of rocks near the Viking 1 Lander (July 23, 1976).
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