JUNO MAKES ITS FIRST ULTRA-CLOSE FLYBY OF THE VOLCANO-COVERED MOON IO

Summary from the TLDR newsletter

NASA's Juno spacecraft flew within 930 miles of the surface of Io, the fourth largest moon in the Solar System, on Saturday. Io is a dense and dry moon that is extremely geologically active, making it an object of great interest to astronomers and planetary scientists. The data collected from the flyby will help scientists determine how Io's volcanoes erupt and how its activity is connected to Jupiter's magnetosphere. A link to a gallery of images from the flyby is available in the article.