Voyager 1 image showing lava flows radiating from Ra Patera at lower left (March 5, 1979).
Ra Patera is an
extraterrestrialvolcano located on
Io, one of the four
Galilean moons of
Jupiter. An
active volcano, it was first studied in 1979 via Voyager stereo imagery to determine its geology, topography, and the source of its eruptions. When first discovered, the mountain reached about one kilometer in height and featured numerous
lava flows of either low
viscosity or "high eruption rates".[1] It is possibly a
liquid sulfur-erupting volcano.[1]
