See Io, our most volcanic moon, erupt like never before

Two spacecraft from the 20th century imaged it up close: <a href="https://www2.jpl.nasa.gov/galileo/io/vgrio.html" rel="noopener ugc nofollow" target="_blank">Voyager 1</a> and <a href="https://science.nasa.gov/mission/galileo/" rel="noopener ugc nofollow" target="_blank">Galileo</a>. <img alt="" src="https://miro.medium.com/v2/resize:fit:630/0*u4runeHSaHmyFcrj.jpg" style="height:700px; width:700px" /> On July 3, 1999, NASA’s Galileo spacecraft made its closest-ever approach to Jupiter’s moon Io, coming within 130,000 kilometers (80,000 miles) of its surface. A series of images were taken, converted to false color, and tiled together to make this hemispherical mosaic of Io, with North on that world pointing “up” in this view. The resolution of this is 1.3 kilometers (0.8 miles) per picture, and was taking with the Solid State Imaging system. Just 25 years later, Io no longer looks like this in detail, as its rapidly changing surface topography is driven by volcanic activity and near-constant resurfacing. (<a href="https://science.nasa.gov/resource/global-image-of-io-true-color/" rel="noopener ugc nofollow" target="_blank">Credit</a>: NASA/JPL/University Of Arizona) <a href="https://medium.com/starts-with-a-bang/see-io-our-most-volcanic-moon-erupt-like-never-before-22eaa83f9793">Read More</a>