On 21 December 2012 ended a 400-year cycle in the Mayan calendar. The world did not go under. But there are scenarios that are truly dangerous. From gamma-ray bursts of volcanic eruptions to black holes: We explain how realistic is the apocalypse.

A mass monster with gigantic force occurs accidentally on Earth , such as in an experiment at the LHC in Geneva . Or a black hole from the depths of the universe is approaching our planet , or the earth approaches him. Within a short time our home is literally devoured or torn. Gamma radiation announces the end of our planet.
How should it happen?
There are several types of black holes . If Earth were caught in the vicinity of a supermassive black hole , as it is thought about in our Milky Way , there is a great danger not only for our planet . Also , our sun would come in the wake of the gigantic mass . The sun and with it the Earth would be swallowed or turn from the hole . In this case, a massive explosion even from great distances would be good to watch , such as those recorded by the satellite.