Scientists could generate a black hole as often as every second when the world's most powerful particle accelerator comes online in 2007. This potential "black hole factory" has raised fears that a stray black hole could devour our planet whole ... But the chance of planetary annihilation by this means "is totally miniscule," ... For one thing, theoretical physicist Stephen Hawking calculated all black holes should emit radiation, and that tiny black holes should lose more mass than they absorb, evaporating within a billionth of a trillionth of a trillionth of a second, "before they could gobble up any significant...