An ominous spike in UFO sightings has captured America's imagination - but what state is the safest to live in if aliens decide to invade the earth? 

A new study has attempted to put the question to rest, with Virginia residents the most likely to survive an extraterrestrial visit. 

According to researchers with njcasino.com, the chances of staying alive are determined by factors including how much each state spends on defense, its population density, and cover from incoming attacks in caves and woodland.

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