There are a huge number of doomsday scenarios, but a special place among them is occupied by the one in which the Earth is destroyed by the hypothetical planet Nibiru. By the way, it may be the very "X-planet" that numerous astronomers are still trying to find unsuccessfully.
A mysterious planet that exists somewhere on the outskirts of the solar system, is fraught with, as competent experts are sure, just a colossal danger.
Nibiru, moving in an elongated orbit, as it approaches the sun, will create increasingly powerful gravitational disturbances that destabilize the delicate balance of forces that support life on Earth. The result of this will be the destruction of human civilization, as well as the death of life on Earth in general. This is such a bleak prospect, from which, as experts are sure, we cannot get away.
It is believed that terrible reptilians live on Nibiru who cannot wait to get closer to the Earth in order to properly enjoy the chaos and destruction prepared for our planet.
Official science, of course, does not recognize Nibiru - all such speculations, scientists assure, have no foundation.
Kolesnikov Andrey