An extraordinary account of the impact space weather had on military operations in Vietnam in 1972 was found buried in the U.S. Navy archives, according to a newly published article in Space Weather.
On August 4, 1972, the crew of a U.S. Task Force 77 aircraft flying near a naval minefield in the waters off Hon La observed 20 to 25 explosions over about 30 seconds. They also witnessed an additional 25 to 30 mud spots in the waters nearby.
Destructor sea mines had been deployed here during Operation Pocket Money, a mining campaign launched in 1972 against principal North Vietnamese ports.
There was no obvious reason why the mines should have detonated. But it has now emerged the U.S. Navy soon turned its attention to extreme solar activity at the time as a probable cause.
The more we can understand the impact of such space weather on technology then the better we can be prepared for any future extreme solar activity.
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