🌌 Mimas — the tiny Saturn moon with a big secret This is Mimas, a small, cratered moon that looks like a frozen rock. In 2024, a team re-analyzed Cassini tracking data and found strong evidence that Mimas hides a global ocean beneath its icy shell — about 20–30 kilometers under the surface — and that the ocean is young, likely less than 25 million years old. 🧪 How did they figure this out? Instead of looking for geysers or fractures, researchers modeled subtle changes in Mimas’s orbit and rota

Mimas, Saturn's moon, has surprised scientists with the discovery of a global ocean beneath its surface, estimated to be only 5 to 15 million years old. | The Weather Channel | Facebook