Mercury, Exploration of a Planet

See the exciting theory on the beginning of our solar system. Watch Mariner 10 close in on Venus and Mercury for views scientists have always hoped to see. It's the story of exploring our two neighbors nearest the sun, and a terrific animated and photographic display of these planets. Dr. Bruce C. Murray comments on the mission and the new questions that have developed concerning the history of Mercury. Watch and you'll get a glimpse of two worlds not completely unlike our own.