Space probes with added support found out that Jupiter has rings. They are very faint but there are photographs of them. Their outer edge is about 34,000 miles above Jupiter's atmosphere and it is about eighteen miles thick. They were first detected by the flybys of Voyager 1 and Voyager 2 . Before those flybys, astronomer's had no idea that Jupiter had rings.
Scientists now think that the rings are caused by the eruptions of volcanoes on Jupiter's moon Io.
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