PUBLIC INFORMATION OFFICE 
JET PROPULSION LABORATORY 
CALIFORNIA INSTITUTE OF TECHNOLOGY 
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION 
PASADENA, CALIFORNIA 91109. Telephone (2l3) 354-5011 
  
PHOTO CAPTION                       (TOP)          P-23265C
                                                   S-1-64 
                                                   Jan. 6, 1981 
  
The conspicuous crater on the surface of Saturn's moon Mimas is seen
in this image taken by NASA's Voyager 1 on Nov. 12, 1980 when the
spacecraft was 540,000 kilometers (324,000 miles) from the satellite.
The massive crater, whose proportionate size (approximately
100 kilometers or 60 miles) is about one-quarter of the satellite's
diameter (390 kilometers or 235 miles) is without precedent among
the explored objects of the solar system. The impact that formed
the crater was probably almost large enough to shatter Mimas into
two or more fragments. The Voyager Project is managed for NASA by
the Jet Propulsion Laboratory, Pasadena, California.
  
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