The document discusses several famous astronomers and astronauts including:
John Glenn, the first American to orbit Earth. Neil Armstrong and Buzz Aldrin, who were the first people to walk on the moon as part of the Apollo 11 mission in 1969. James Lovell, who flew on two Gemini missions and two Apollo missions to orbit the moon.
It also briefly mentions astronomers Nicholas Copernicus, who developed the Copernican theory that the Earth and planets revolve around the sun, Halton Arp, and Kathryn Thornton, the first woman to graduate from the US Naval Academy.