1.
Developed the Saturn V rocket that enabled astronauts to reach the Moon.
2.
Led the Soviet space program that launched Sputnik and sent Yuri Gagarin into orbit.
3.
First human to travel into space and orbit the Earth.
4.
First person to walk on the Moon during Apollo 11.
5.
Apollo 11 astronaut who helped conduct the first experiments on the Moon.
6.
Command Module pilot on Apollo 11 who orbited the Moon while Armstrong and Aldrin landed.
7.
First American in space and later a Moon-walking astronaut on Apollo 14.
8.
First American to orbit the Earth.
9.
NASA mathematician who calculated critical trajectories for early space missions.
10.
Led development of Apollo Guidance Computer software that prevented mission-ending failures.
11.
Created NASA’s Mission Control and served as its first flight director.
12.
Flight director who led the successful rescue of Apollo 13.
13.
First woman to travel into space.
14.
First American woman in space and advocate for science education.
15.
NASA closeout engineer who ensured spacecraft safety before launch.
16.
Launched the world’s first liquid-fuel rocket, pioneering modern rocketry.
17.
Planetary scientist who helped guide missions like Voyager and popularized space science.
18.
Directed JPL during Explorer 1, America’s first satellite mission.
19.
Commander of Apollo 8, the first crewed spacecraft to orbit the Moon.
20.
Apollo astronaut who helped lead the safe return of the damaged Apollo 13 mission.
21.
First human to perform a spacewalk.
22.
Astronaut who advanced long-duration spaceflight and Shuttle–Mir cooperation.
23.
NASA astronaut who set U.S. records for total time spent in space.
24.
Physicist who exposed the O-ring failure that caused the Challenger disaster.
