Scientists at the University of Madrid and the University Of Cambridge have put forward the revolutionary theory that there could in fact be two more planets in the solar system.
The controversial prediction comes after the two teams started to look at the behaviour of objects out past Neptune.
A currently agreed theory is that objects out past Neptune must share the common pattern which is that they hold a set trajectory around the Sun because there's nothing else large enough to affect their orbit.
What they found was that actually trans-Plutonion objects did not follow that path, instead they travelled a wide variety of orbits suggesting that some huge object was affecting their trajectories.
The teams have since pulled together their theories into one idea which is that there are not one, but two large 'dark' planets which are orbiting our Sun.
Speaking to phys.org, Carlos de la Fuente Marcos Co-Author of the study explains that, "the exact number is uncertain, given that the data that we have is limited, but our calculations suggest that there are at least two planets, and probably more, within the confines of our solar system,"
The reason this is such a controversial theory is that it goes against the widely agreed model set out for the creation of a solar system.
Currently the model states that there quite simply cannot be objects that would be classed as planets orbiting past Pluto.
Both teams have agreed that they have a long way to go before they can prove their theory as at present, it's mostly based on mathematical calculations.Suggest a correction