Project Mercury: Gordon Cooperโs Final Solo Spaceflight, May 15, 1963
Project Mercury: The launch of the final Mercury mission, Mercury-Atlas 9 with astronaut Gordon Cooper on board. He becomes the first American to spend more than a day in space, and the last American to go into space alone. Date: May 15, 1963 Read more on Wikipedia โ ๐ Other events on May 15 ๐ …