Full-disk image of Jupiter's satellite Io made from several frames taken by the Voyager 1 spacecraft on March 4, 1979, from a range of 862,000 kilomet

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Full-disk image of Jupiter's satellite Io made from several frames taken by the Voyager 1 spacecraft on March 4, 1979, from a range of 862,000 kilometres. The circular feature at centre with a dark spot in the middle is an active volcano, & so are the other features similar to it. Io's volcanic activity appears to be of at least two types: explosive eruptions that hurl material up to 250 km into the satellite's sky; and lava that flows across its surface.

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Size: 3498px × 3660px
Photo credit: © NASA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1, astronomy, cosmology, imagery, io, jovian, jupiter, moon, planet, planetary, science, volcano, voyager