If the largest nuclear bomb ever designed by the Soviet Union were dropped on downtown Atlanta, anything within a nearly five-mile radius would be "effectively vaporized." Within 20 miles of the ...

KANSAS CITY, Mo. (KCTV) - September 23, 1949. US President Harry S. Truman announces evidence of the USSR’s first nuclear device detonation. This Day in History: Walt Disney's Laugh-O-Gram Studio ...

Nuclear weapons produce frighteningly massive detonations that destroy everything in their path. They've only ever been used once during wartime, and the bombs of today are even deadlier than the one ...

ALBUQUERQUE, N.M. — Roughly 12,550 miles above Earth, a constellation of U.S. global positioning satellites orbits the planet. GPS satellites also carry a sophisticated system designed to detect above ...