By our best estimates there is a 1 in 500 chance betelgeuse will go supernova in my life time. I really hope I beat the odds on this one!

@freemo You know that only works if it is a one-in-a-million chance!

@trinsec The way it works is simple really.. 1) Our current best estimates state that Betelgeuse will go supernova at some point in the next 100,000 years (other than that we can pin down when it will start and when it does start it will all happen rather fast)... Next we know on average our galaxy experiences 2 supernova a year. So if you have a life span of ~ 100 years that works out to ~1 in 500.