Imagery from the solar-powered spacecraft provides close-ups of intriguing features on the hellish Jovian moon.
This animation is an artist’s concept of Loki Patera, a lava lake on Jupiter ’s moon Io, made using data from the Juno Cam imager aboard NASA’s Juno spacecraft. With multiple islands in its interior, Loki is a depression filled with magma and rimmed with molten lava. Credit: NASA/JPL-Caltech/SwRI/MSSS
Juno made extremely close flybys of Io in December 2023 and February 2024, getting within about 930 miles of the surface, obtaining the first close-up images of the moon’s northern latitudes. Image credit: NASA/JPL-Caltech/SwRI/MSSS. Image processing: Gerald Eichstädt/Thomas Thomopoulos ., the spacecraft flies closer to the north pole of Jupiter with each pass. This changing orientation allows the MWR instrument to improve its resolution of“Perhaps most striking example of this disparity can be found with the central cyclone at Jupiter’s north pole,” said Steve Levin, Juno’s project scientist at NASA’s Jet Propulsion Laboratory in Southern California.
In 1995, NASA’s Galileo probe provided an early dataset on Jupiter’s water abundance during the spacecraft’s 57-minute descent into the Jovian atmosphere. But the data created more questions than answers, indicating the gas giant’s atmosphere was unexpectedly hot and — contrary to what computer models had indicated — bereft of water.
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