Two Close-Ups of Ganymede, 25 Years Apart, Reveal Stunning Changes
In 1996 and 2021, NASA’s Galileo and Juno spacecraft flew past Ganymede. Comparing these two close-ups reveals surprising changes and clues about Jupiter’s largest moon.
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Juno Mission Uncovers Surprising Source of High-Energy Cosmic Rays
NASA’s Juno mission reveals Jupiter’s magnetic field accelerates particles, providing surprising new insights into the origins of high-energy cosmic rays that bombard Earth.