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International Day of Human Space Flight 2025 – April 12
April 30 , 2025
18 hrs 0 min
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- This day aims to honour both the past accomplishments and the continued efforts to explore the universe.
- On April 12, 1961, Yuri Gagarin, a Soviet cosmonaut, made history as the first human to travel into space aboard the Vostok 1.
- In recognition of this groundbreaking event, the UN declared this day in 2011.
- Generally, the Kármán line located at 100 km (62 miles) above sea level.
- It is an imaginary line that demarcates the earth’s atmosphere from space.
- Anything traveling above the Kármán line needs a propulsion system that doesn’t rely on lift generated by Earth’s atmosphere.
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