Jul 18 1996
From The Space Library
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(New page: NASA released new images of Io, one of Jupiter's moons, obtained by the Galileo spacecraft. Michael J. S. Belton of the National Optical Astronomical Observatories p...)
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NASA released new images of Io, one of Jupiter's moons, obtained by the Galileo spacecraft. Michael J. S. Belton of the National Optical Astronomical Observatories pointed out that radical changes had occurred on the moon during the 17 years between Galileo and the first observation of lo, via the Voyager spacecraft in 1979. According to Belton, active volcanoes had altered the color of the moon's surface, forming deposits of sulfur and sulfur dioxide that painted the surface white.103
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