Hydrogen bombs cause a bigger explosion, which means the shock waves, blast, heat and radiation all have larger reach than an atomic bomb, according to Edward Morse, a professor of nuclear engineering at University of California, Berkeley.

Top university scientists created a map simulation of who across North America would be impacted by nuclear fallout in the event of a nuclear explosion

Editor’s note: This story is the first of a two-part series. The second installment will appear in Monday’s newspaper. Near the end of a washboard gravel road climbing uphill about five miles off Interstate 70 at Parachute, it feels a bit incredulous ...