A B57-B aircraft captures "Castle Bravo" from the sky, which is the most powerful nuclear device ever detonated by the United States. The operation, which took place on March 1, 1954 at Bikini Atoll, Marshall Islands, was testing a dry fuel hydrogen bomb. h/t: Wikipedia | Inverse

“Castle Bravo”, the most powerful nuclear device ever detonated by the US, captured by a B57-B Canberra(1954) flying at 30,000 feet. This was our the first test of a hydrogen bomb by the United States, conducted on March 1, 1954, at Bikini Atoll in the Marshall Islands as part of Operation Castle. It was the most powerful nuclear device ever detonated by the United States and remains infamous for its unexpected scale of destruction and fallout. The weapon was predicted to have a yield of 6 megat

On March 1, 1954, the United States detonated a thermonuclear device at Bikini Atoll during Operation Castle. Scientists made a catastrophic miscalculation in the lithium-7 reaction, causing the blast to be 15 megatons, three times more powerful than expected. The explosion vaporized entire islands and sent a plume of radioactive debris into the atmosphere. About 80 miles away, the Japanese fishing boat Daigo Fukuryū Maru, or Lucky Dragon No. 5, was caught in the path of the fallout. The 23 crew