1962: Operation DOMINIC-Sunset. From Johnston Island, a Thor IRBM carries a megaton-plus hydrogen bomb above 200 miles in altitude. The detonation marks the highest thermonuclear blast by a US bomb, and perhaps, the highest of any nation.
1962: Operation DOMINIC-Sunset. From Johnston Island, a Thor IRBM carries a megaton-plus hydrogen bomb above 200 miles in altitude. The detonation marks the highest thermonuclear blast by a US bomb, and perhaps, the highest of any nation.