Triton’s Volcanoes
To find a volcanically active place at the furthest reaches of the solar system was certainly a surprise when scientists got their first glimpse of Neptune’s moon Triton with the Voyager 2 spacecraft in 1989. But the moon’s surface is young, possibly younger than Europa’s, perhaps the result of internal heating. This view shows a volcanic plain on the moon.
Image: NASA/JPL/Universities Space Research Association/Lunar & Planetary Institute
