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Riled Up is a journal of science, the environment, exploration, new technology, and related commentary.  Contributors include scientists, explorers, engineers, and others who provide perspectives and context not typically offered in general news circulation.  For interested readers, additional resources are included.

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Io Up Close
Hugh Bollinger

Io Up Close

Io in infrared light, 7-5-22 (credit: NASA/JPL-Caltech/SwRI/Juno)

The Juno spacecraft is closing in for a series of close-up fly-by photographs and measurements of the Jupiter's volcanic moon Io. An initial image was captured when the spacecraft was about 50,000 miles away.

Juno carries an infrared camera that detects 'heat signatures' of objects it is photographing. This images was produced from data collected by the JIRAM (Jovian Infrared Auroral Mapper) instrument aboard Juno. The brighter the color the higher the temperature recorded by the infrared sensors. More close-ups will arrive soon but don't expect them to show and blue, ie, cool temperature profiles one this fascinating but hellish moon.

Here is brief survey of Io's strangeness. WHB


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