How did they come up with the theory of 2012?
Dec 21, 2012 end of the world theory #1: Planet X collides with our planet. One of the biggest Dec 21, 2012 end of the world theories states that on that fateful winter solstice our planet earth will collide with the mysterious and fabled Planet X
Answered -
About Planet X
Planet X is a theoretical planet thought to be beyond the orbits of Neptune and Uranus. Astronomers thought this planet could exist because of eccentricities in the orbits of the two ice giants. In the 1990s it was discovered the eccentricities were due to an over estimation of Neptune's mass. It is widely agreed that Planet X does not exist in our solar system.
About Planet
A planet is a celestial body, apparently bigger than poor little Pluto, orbiting a star. They typically have semi-solid metalic core, and the rest of the planet can be either gaseous like Jupiter and Saturn, or more dense and solid like Earth and Mars.
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