A scientist published a guide Wednesday to help authorities limit deaths from fallout after a city is hit by a nuclear bomb.
Sometimes opportunity just falls out of the sky – especially if you're Physics and Astronomy professor Peter Brown.
Sometimes, attacks in Syria's bloody civil war start not with a bullet or a bomb blast, but with an innocuous-looking email. A message pings into an inbox, apparently from a friend or colleague. The recipient clicks a link, ...
The man from the Forest Service burst into the switchboard room with orders for the young operator. Keep quiet, he told Cora Conner, 16. Stay put.