Valery Polyakov: Record-breaking Russian cosmonaut dies aged 80
Valery Polyakov took the longest-ever spaceflight, clocking up 437 continuous days in the 1990s.
from BBC News - World https://ift.tt/5OepCcm
https://ift.tt/5OepCcm
from BBC News - World https://ift.tt/5OepCcm
https://ift.tt/5OepCcm
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