What is the largest planet in the Solar System?

The largest planet in the Solar System is Jupiter. It has a diameter of approximately 139,820 kilometres (86,881 miles) and is about 11 times larger than Earth. Jupiter is a gas giant, composed mainly of hydrogen and helium, and it has no solid surface. It is known for its Great Red Spot, a massive storm that has been raging for centuries. Jupiter also has a strong magnetic field and at least 95 moons, including Ganymede, the largest moon in the Solar System. Its immense size and unique features make it an object of significant scientific interest.