/sci/ - Science & Math

Juno makes its first ultra-close flyby of the volcano-covered moon Io
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https://arstechnica.com/space/2024/01/nasa-just-flew-by-the-solar-systems-most-volcanically-active-moon/
> On Saturday NASA's Juno spacecraft, which has been orbiting Jupiter for the better part of a decade, made its closest flyby of the innermost moon in the Jovian system.
> The spacecraft came to within 930 miles (1,500 km) of the surface of Io, a dense moon that is the fourth largest in the Solar System. Unlike a lot of moons around Jupiter and Saturn, which have surface ice or subsurface water, Io is a very dry world. It is also extremely geologically active. Io has more than 400 active volcanoes and is therefore an object of great interest to astronomers and planetary scientists.