NASA's Juno mission has discovered a new volcano on Jupiter's moon Io, revealing significant geological changes since the last observations by the Galileo spacecraft in 1997. The newly identified volcano, located just south of Io's equator, features lava flows extending approximately 100 kilometers and is surrounded by a red stain likely caused by sulfur emissions. The JunoCam captured these images during recent flybys in 2023 and 2024, marking the first detailed observations of Io in over 25 years. Michael Ravine, from Malin Space Science Systems, emphasized the surprise at finding such a large volcanic feature that seemingly formed from a flat region in just over two decades. The findings contribute to our understanding of Io as the most volcanically active body in the solar system, showcasing its dynamic and rapidly changing landscape. Additionally, the Juno spacecraft has detected new mountains on Io, some reaching heights of 7 kilometers, further illustrating the moon's intense geological activity.