A new study revealed that our solar system is in danger of a planet that is lurking at the edge of our Solar System.
Planet Nine will wipe out Jupiter, Saturn, Uranus and Neptune if and when it spins into orbit.
Planets closer to the sun, including Earth, will have already been wiped out when the sun dies – thought to be in about seven billion years.
After the supernova explosion our host star will turn into a white dwarf star, pushing out bigger planets to a safer distance.
But their turbulent existence won’t last long if Planet Nine makes its move.
Theorists believe Planet Nine is out there, but it is yet to be confirmed.
Dr Dimitri Veras from the Department of Physics at the University of Warwick has mapped several positions where Planet Nine could be, with the farther away and bigger the potential celestial body is, the more havoc it will wreak.
This would be because the farther out and bigger it is, the stronger gravitational pull it will have, throwing the planetary alignment into chaos, with at least on of the planets being catapulted into space.
Dr Veras says: “The existence of a distant massive planet could fundamentally change the fate of the solar system. Uranus and Neptune in particular may no longer be safe from the death throes of the Sun.
“The fate of the solar system would depend on the mass and orbital properties of Planet Nine, if it exists.
“The future of the Sun may be foreshadowed by white dwarfs that are ‘polluted’ by rocky debris. Planet Nine could act as a catalyst for the pollution.
“The Sun’s future identity as a white dwarf that could be ‘polluted’ by rocky debris may reflect current observations of other white dwarfs throughout the Milky Way.”