This 360-degree view, called the "McMurdo" panorama, comes from the panoramic camera (Pancam) on NASA's Mars Exploration Rover Spirit.
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Spirit and Opportunity: Twin Mars Exploration Rovers

The Mars Exploration Rovers act as robot geologists while they are on the surface of Mars.

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3D Model of Spirit and Opportunity: Click (or touch) and drag to interact with this 3D model of the Mars Exploration Rovers.

Spirit and Opportunity: Rover Parts

The rover has a:

a body:	a structure that protects the rovers' "vital organs"
brains:	computers to process information
temperature controls:	internal heaters, a layer of insulation, and more
a "neck and head":	a mast for the cameras to give the rovers a human-scale view
eyes and other "senses":	cameras and instruments that give the rovers information about their environment
arm:	a way to extend its reach
wheels and "legs":	parts for mobility
energy:	batteries and solar panels
communications:	antennas for "speaking" and "listening"