Jupiter 101 | National Geographic

Born from primordial stardust 4.5 billion years ago, Jupiter was the solar system's first planet.

And much like its namesake, the king of the ancient Roman gods, Jupiter was destined for greatness.

Jupiter is the fifth planet from the sun and the largest planet in the solar system.

At approximately 11 Earths wide, Jupiter has twice the amount of mass as the other planets put together.

But unlike Earth and the three other terrestrial worlds, Jupiter has no solid surface.

It may not even have a traditionally solid core.