What is the largest planet in our solar system?

Jupiter is the largest planet in our solar system, significantly surpassing all others in size and mass. It has a diameter of about 86,881 miles (139,822 kilometers) and a volume large enough to contain more than 1,300 Earths. Its immense gravitational pull influences many aspects of the solar system, including the orbits of nearby asteroids and comets. Additionally, Jupiter is a gas giant primarily composed of hydrogen and helium, lacking a solid surface, which contributes to its size. The planet's strong magnetic field and numerous moons, including the four largest known as the Galilean moons, further illustrate its massive scale and complexity.

In contrast, Earth, Saturn, and Neptune are significantly smaller. Earth is the third-largest planet and serves as our home, while Saturn, known for its stunning rings, is the second largest but still much smaller than Jupiter. Neptune, although larger than Earth, is the fourth-largest planet in the solar system, making the distinction clear regarding Jupiter's size and status.