Jupiter's Gravitational Pull Creates 100-Metre Rock Tides on Io, Fueling Volcanic Activity

In the outer reaches of our Solar System, a small moon named Io endures a perpetual gravitational embrace from Jupiter so powerful that solid rock rises and falls a hundred metres with every orbit — not as metaphor, but as measurable physical fact. This relentless kneading of Io's interior generates heat on a scale that keeps the moon in a state of constant volcanic fury, making it the most geologically alive body we know. The story of Io is, in a deeper sense, a story about how gravity itself is a creative force — one that sculpts worlds, sustains interiors, and may be doing so across countle