水星-红石3号发射
2021年05月07日 Mercury-Redstone 3 Launch Image Credit: NASA Explanation: Sixty years ago, near the dawn of the space age, NASA controllers “lit the candle” and sent Mercury astronaut Alan Shepard arcing into space atop a Redstone rocket. His cramped space capsule was dubbed Freedom 7. Broadcast live to a global television audience, the historic Merc...