Number 10
Total existence failure
Number 9
Gobbled up by strangelets
Number 8
Sucked into a microscopic black hole
Number 7
Blown up by matter/antimatter reaction
Number 6
Destroyed by vacuum energy detonation
Number 5
Sucked into a giant black hole
Number 4
Meticulously and systematically deconstructed
Number 3
Pulverized by impact with blunt instrument
Number 2
Eaten by von Neumann machines
Number 1
Hurled into the Sun
According to LiveScience