How Volcanoes Work

 Volcanism on other worlds


The Apollo missions to the moon in the 1960's set the stage for space exploration in the 1970's, 80's, and 90's through the Mariner, Pioneer, Viking, Voyager, Magellan, and Galileo missions. The data gathered by these missions has greatly expanded our knowledge of volcanism on other worlds. Volcanic features comparable to those on earth are particularly well exposed on the Earth's Moon, Mars, Venus, and the Jovian moon, Io. The most stunning discoveries of the 1990's are the great variety of spectacular volcanic features displayed by radar imagery of Venus, and the dramatic discovery of perennial eruptions on Jupiter's satellite Io.