| 
 
 
 COMETS EARTH JUPITER KUIPER BELT MARS MERCURY METEORITES NEPTUNE OORT CLOUD PLUTO SATURN SOLAR SYSTEM SPACE SUN URANUS VENUS ORDER PRINTS 
 
 PHOTO CATEGORIES SCIENCEVIEWS AMERICAN INDIAN AMPHIBIANS BIRDS BUGS FINE ART FOSSILS THE ISLANDS HISTORICAL PHOTOS MAMMALS OTHER PARKS PLANTS RELIGIOUS REPTILES SCIENCEVIEWS PRINTS 
  | 
 
 Related Documents 
Download Options 
 
 This animation shows the transit of Mars' moon Phobos across the Sun. It is made up of images taken by the Mars Exploration Rover Opportunity on the morning of the 45th martian day, or sol, of its mission. This observation will help refine our knowledge of the orbit and position of Phobos. Other spacecraft may be able to take better images of Phobos using this new information. This event is similar to solar eclipses seen on Earth in which our Moon passes in front of the Sun. The images were taken by the rover's panoramic camera.  |