False Col Image Of Jupiter's Moon Io
by Credit; Us Geological Survey/nasa/science Photo Library
Title
False Col Image Of Jupiter's Moon Io
Artist
Credit; Us Geological Survey/nasa/science Photo Library
Medium
Photograph - Photograph
Description
False colour image of the surface of Jupiter's moon Io, taken by Voyager 1. The equator runs across the centre of the photo and the top & bottom are at lattitudes 75 deg N & S. The huge volcano, lower left of centre, is Pele, the isolated volcano to the right, on the equator, is Prometheus. The 'super-enhanced' colours seen here are used by geologists to distinguish different types of rock. The deposits on the left half of the photo (orange) consist of sulphur ejected by large volcanoes like Pele. The blue areas are deposits of sulphur dioxide snow ejected from smaller volcanoes such as Prometheus.
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September 26th, 2018
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