Mercury-Redstone 4

5 May
2016
May 5, 2016

A History of Suborbital Crewed Spaceflights

According to the FAI (Fédération Aéronautique Internationale) which maintains records for aeronautical activities, the “official” threshold of space is at an altitude of 100 kilometers which […]
Manned Spaceflight, Rockets & Propulsion, Spaceflight
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