In 1979, Voyager 1 flew past Jupiter and photographed an active volcano erupting on Io, the first time volcanic activity had ever been observed on a world other than Earth, spotted by a navigation engineer checking the probe’s position

In March 1979, NASA’s Voyager 1 probe swept past Jupiter and, in an image taken not for science but for navigation, captured the first active volcano ever seen on a world other than Earth. The volcano was on Io, the innermost of Jupiter’s four Galilean moons. The person who found it was Linda Morabito, an [...] The post In 1979, Voyager 1 flew past Jupiter and photographed an active volcano erupting on Io, the first time volcanic activity had ever been observed on a world other than Earth, spott