Figure 13-26: R I V U X G
Jupiter’s Four Inner Satellites First observed in 1892, Amalthea was the last satellite of any planet to be discovered without the aid of photography. Metis, Adrastea, and Thebe, by contrast, are so small that they were not discovered until 1979. These images from the Galileo spacecraft are the first to show these three satellites as anything more than points of light.
Jupiter’s Four Inner Satellites First observed in 1892, Amalthea was the last satellite of any planet to be discovered without the aid of photography. Metis, Adrastea, and Thebe, by contrast, are so small that they were not discovered until 1979. These images from the Galileo spacecraft are the first to show these three satellites as anything more than points of light.
(NASA/JPL; Cornell University)