Official NASA portrait of Gemini 3 astronauts Gus Grissom (left) and John Young April 13, 1964.

- Image ID: HDDWA0
Official NASA portrait of Gemini 3 astronauts Gus Grissom (left) and John Young April 13, 1964.
NASA Photo / Alamy Stock Photo
Image ID: HDDWA0
Official NASA portrait of Gemini 3 astronauts Gus Grissom (left) and John Young April 13, 1964.