ARLA/CLUSTER: Tempestade solar em 1972 faz accionar duas dezenas de minas no Vietname

[João Costa > CT1FBF]

1972 solar storm triggered a Vietnam War mystery

On Aug. 4, 1972, U.S. military pilots flying south of Haiphong harbor in
North Vietnam saw something unexpected. More than two dozen sea mines
suddenly—and without apparent explanation—exploding in the water.

Now, CU Boulder engineering professor *Delores Knipp* and her colleagues
have dug into this four-decades-old naval mystery. In a commentary
published recently in the journal Space Weather, the team reports that the
mines were likely triggered by magnetized gas flung at Earth from a recent
solar storm.

The research, which Knipp said was inspired by “a fragment of a memory,�
uncovers a chain of events around the sun and on Earth that had largely
been lost to history. It also suggests that the 1972 solar storm was more
serious than many researchers at the time suspected.

Knipp, a research professor in the Ann and H.J. Smead Aerospace Engineering
Sciences Department (AES), said that the case of the exploding mines
highlights the world’s current vulnerability to a similar space weather
event.

“In the process of researching this event, I realized that this was, in
fact, a great storm. But it was also such an odd storm in the way it
developed and the way it hit the earth,� said Knipp, also of the Colorado
Center for Astrodynamics Research (CCAR). “What this event does is give us
a sense of range of what these great storms could look like.�

https://www.colorado.edu/today/2018/11/12/1972-solar-storm-triggered-vietnam-war-mystery
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