Is there a ninth planet in the solar system?
Once there were nine, but now there are only eight. Yes, we are talking about the number of planets in our solar system, and no, we are not over Pluto being demoted. Nevertheless, astronomers now suspect there might be a previously undiscovered planet.
How? Well, beyond Neptune’s orbit, there is a large asteroid field called the Kuiper Belt, and the objects there show some strange gravitational patterns. This could be explained by the fact that something larger is pulling them towards itself.
