1951 Space & Exploration Events — Verified Historical Highlights | TakeMeBack.to

1951 Space & Exploration Events — Verified Historical Highlights

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1951 Space & Exploration Events — Verified Historical Highlights | TakeMeBack.to


  • 22 Jul Soviet dogs make first sub-orbital flight: On July 22, 1951, Soviet space dogs Dezik and Tsygan became the first mammals to survive a sub-orbital spaceflight, reaching an altitude of 110 km and experiencing four minutes of weightlessness before safely returning to Earth. source: en.wikipedia.org