Photopolarimeter-Radiometer
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Nighttime temperatures in the southern hemisphere of Jupiter's moon Io, mapped here with data from NASA's Galileo spacecraft, give hints…

Powerful volcanoes and the previous day's sunshine warm the nighttime surface of Jupiter's moon Io, as seen in this image…

Ideas about the role of sulfur in volcanoes on Jupiter's moon Io are illustrated. Sulfur gas consisting of pairs of…

This image depicts the discovery of sulfur gas in the plume of the Pele volcano on Jupiter's moon Io, as…

A recently discovered black spot in Jupiter's clouds is darker than any feature ever before observed on the giant planet.…

This map shows temperatures for the region around Jupiter's Great Red Spot and an area to the northwest. This map…

This map shows temperatures for the region around Jupiter's Great Red Spot and an area to the northwest. This map…

This map shows the temperatures for most of the surface of Ganymede made from data taken by on Jun. 26,…

This infrared image of Jupiter's moon Ganymede, showing heat radiation from its surface at a wavelength of about 60 microns,…


