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The Planetary Report • May/June 1983

Europa—Another Ocean?

On the Cover: The cracked, icy face of the Jovian moon Europa intrigues scientists, who have speculated that liquid water from a subsurface ocean may seep through the cracks. The reddish cast in this false-color, high contrast image may be due to ion bombardment and sulfur deposition from volcanic Io and/or micrometeorite bombardment of Europa's leading hemisphere (right).
Alfred McEwen, U.S. Geological Survey

Features

4 A Talk with Arthur C. Clarke: James D. Burke chats with the famous author and scientist after a tour of the Jet Propulsion Laboratory.

5 The Solar System's Other Ocean: Steven W. Squyres and Ray T. Reynolds take us on a tour of Europa and its possible subsurface ocean.

8 Planet-Building by Computer: Jon Lomberg and Charlene Anderson talk to Dr. James F. Blinn at JPL, whose pioneering work in computer graphics and animation is helping to visualize Voyager's encounters with Jupiter and Saturn.

Departments

11 World Watch A new golden age of planetary exploration?

14 News & Reviews Ganymede, Callisto, Mars, and Venus.

15 Society Notes Participation in events to educate the public on space exploration.

astronaut on Phobos
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