NASA’s Juno Spacecraft Flies Past Io and Jupiter,

On May 16, 2023, NASA’s Juno spacecraft flew past Jupiter’s volcanic moon Io, and then the gas giant soon after. Io is the most volcanically active body in the solar system. Slightly larger than Earth’s moon, Io is a world in constant torment. Not only is the biggest planet in the solar system forever pulling at it gravitationally, but so are its Galilean siblings – Europa and the biggest moon in the solar system, Ganymede. The result is that Io is continuously stretched and squeezed, actions linked to the creation of the lava seen erupting from its many volcanoes.

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