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Bruce Murray Space Image Library

Loki Patera, Io, from Voyager

Loki Patera, Io, from Voyager
Loki Patera, Io, from Voyager The detailed structure near the volcano Loki is like nothing seen elsewhere on Io. When this Voyager 1 picture was taken, the main eruptive activity came from the lower left of the dark linear feature (perhaps a rift) in the center. Below is the "lava lake," a U-shaped dark area about 200 kilometers across. NASA / JPL / UA