Scientists poured pink dye into Florida’s Lake Jackson to trace hidden water; about 1 month later, it appeared at Wakulla Spring through limestone caves
Scientists who read 16 years of radio tracking from three Mars orbiters say the mantle beneath the planet's southern highlands runs 200 to 400 degrees Celsius hotter, averaged over the whole depth of the mantle, than the mantle beneath the northern plains, an inference drawn from the way Mars flexes under the Sun across each Martian year