rotation. Here’s the puzzle: That is about 6 minutes, or one percent, longer than the radio rotational period measured by the Voyager 1 and Voyager 2 spacecraft, which flew by Saturn in 1980 and 1981.

Pasadena, Calif. — In a David and Goliath story of Saturnian proportions, the little moon Enceladus is weighing down giant Saturn’s magnetic field so much that the field is rotating slower than the ...

I recently noticed something odd about Saturn while admiring it near brilliant Venus in the southwestern night sky. Any object close to our evil twin sister planet will look somewhat dull in ...