On July 25, 1946, the US detonated "Helen of Bikini" 90 feet underwater at Bikini Atoll — the first submerged nuclear test. It sank eight warships and drenched the fleet in radioactive spray, teaching ...
Add Yahoo as a preferred source to see more of our stories on Google. The "Baker" test shot explodes off of Bikini Atoll on July 25, 1946. After World War II, the U.S. military had a new problem to ...