Scientists using a satellite to explore Jupiter say the planet is covered in hurricanes the size of Earth.
Jupiter is the fifth planet from the sun, and is so big, you could fit 1,300 planet Earths inside it.
A satellite called Juno has travelled all the way to the planet to take pictures of the surface.
It has taken Juno five years to make the 1.4 billion mile journey.
Scientists have been looking at the pictures to learn about the planet.
The first thing they've discovered is huge hurricanes on the surface.
"Think of a bunch of hurricanes, every one the size of the Earth, all packed so close together that each hurricane touches the other," said scientist Mike Janssen.
The project is going to last several years, with the next batch of pictures expected in July.