Volume 11, number 4
Scar on the Earth
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(Planetary Society members only)
4 What Now With the Soviets? Louis Friedman asks what will happen with future space missions with the dissolution of the Soviet Union.
8 Rovers! Using Mobile Robots as Planetary Explorers: Donna Pivirotto explains how we can explore other planets with robotic companions.
14 Revisiting Mars: Landslide in Ophir Chasma: Charlene Anderson showcases stunning Viking images of massive landslides in part of Mars' giant Valles Marineris.
18 Eugene Merle Shoemaker: A Pioneer of Planetary Science: Bettyann Kevles reflects on the important contributions Shoemaker made to the study of impact cratering.
3 Members' Dialogue Environmental effects of space shuttle launches; asteroid missions.
24 World Watch NASA budget update, Galileo, and upcoming Mars missions.
26 News & Reviews Being a bird on Titan.
27 Society Notes Rover news, Mars balloons, and space art.
28 Q&A Does lightning happen on other planets?