Scientists Discover Vast Thermal Anomaly Beneath Mars's South Pole

Beneath the frozen silence of Mars's south pole, scientists have found something unexpected: a vast reservoir of heat buried deep within the planet's crust, discovered not by any rover's touch but by listening to the way Mars itself bends under the pull of gravity. Using a technique called tidal tomography, researchers have mapped a thermal anomaly that may hold the key to one of planetary science's oldest riddles — why Mars's two hemispheres are so profoundly unlike each other. In finding heat where uniformity was assumed, we are reminded that even worlds long thought to be cold and dead may