The solar system is vast, but how big is it really? In this video, we break down the scale of our solar system by starting with the Sun and comparing it to everyday objects.

They can be very large - the biggest, Ceres, has a diameter of nearly 600 miles ... We can unpick the 4.5 billion year journey from the solar nebula, to the protoplanetary disc, to the solar system we ...

However, we actually have six in our Solar System. Pluto, Ceres ... a hypothetical planet three times as big as Jupiter that some scientists thought might be in the Oort cloud.

Everyone knows about the Solar System, and the planets that make it up. They’re in space, orbiting the Sun, in an order we all at least used to be able to recite. But it was not always so.

The same year that Pluto was ignominiously stripped of its status, a paper was published theorizing that there was another planet, a very big planet ... darkness of our Solar System beyong ...