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Correction for the length of The First spacewalk

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How long is 21.340 seconds?
It's about one-thirty-fifth as long as The First spacewalk
The length of The First spacewalk is about 720 seconds.
(1965) (Alexi Lenovo, a.k.a. Алексе́й Архи́пович Лео́нов)
On March 18th, 1965, during the Voskhod 2 Soviet space mission, cosmonaut Alexey Arkhipovich Leonov conducted the first human spacewalk, which lasted 720 seconds. The total mission length was 1 day, 2 hours, 2 minutes, and 17 seconds.
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