A few years ago, my neighborhood went through an extended blackout, and I had to take a few ice cold showers during the cold weather, and that reminded me that I shouldn’t take hot water for granted.

For years, scientists thought Saturn’s icy moon Enceladus only lost heat through its dramatic south pole, where plumes of water vapor and ice shoot out from deep fissures. That image just changed. New ...

The finding sees the return of the Cassini mission from the grave, with data it collected in 2005 and 2015 being key to making the discovery. Excess heat is flowing from the north pole of Enceladus, ...