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
In 2017, scientists poured Rhodamine WT pink dye into Porter Hole Sink under Florida’s Lake Jackson; 35 days later instruments picked it up at Wakulla Spring through limestone caves
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