Context: In 1958 as part of an experiment, Operation Argus, the United States Navy detonated an atomic bomb 160 kilometres (100 mi) high in the upper atmosphere about 175 kilometres (109 mi) southeast of the main island.

Question: What year was an atomic bomb detonated near the island?
Answer: 1958

Question: What country test detonated an atomic bomb near the island?
Answer: United States

Question: During which mission did the US Army detonate an atomic bomb?
Answer: Unanswerable

Question: What was detonated during Operation Navy in 1958?
Answer: Unanswerable

Question: Where was the nuclear bomb detonated?
Answer: Unanswerable

Question: When did the upper atmosphere detonate an atomic bomb?
Answer: Unanswerable