* How It Works magazine has summarised seven devastating scenarios that could result in the end of the world
* They include an asteroid smashing into Earth, a nuclear winter, global pandemic and the sun dying
* The most probable is the eruption of a supervolcano and a super-eruption is said to occur once every 100,000 years
The apocalypse may be a popular subject of sci-fi films, but there are some very real scientific theories in danger of becoming reality.
These include being blown to smithereens as an asteroid smashes into Earth and a highly infectious pandemic that wipes out huge swathes of the global population within days.
However, the most probable is the eruption of a supervolcano, according to a feature in How It Works magazine, which details seven of the most devastating scenarios and threats facing mankind.
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WNU Editor: Only 7 threats.