Jupiter and Saturn may be similar in size and made of the same gases, but the weather at their poles tells a different story.

Astronomers have spotted a Saturn-sized world drifting through a region of space that theory once said should be almost empty, a so‑called Einstein desert where planets are notoriously hard to find.

How far it is from the sun: 886 million miles (1.4 billion kilometers), on average How big it is: 72,400 miles (116,500 km) across, or almost 10 times the size of Earth. How many moons it has: At ...

Jupiter and Saturn host strikingly different polar storms, despite being similar giant planets, and scientists have long wondered why. New simulations suggest the answer may lie deep below the clouds.