1. Apollo 11 - The first manned mission to land on the Moon (July 20, 1969).
2. Mars Pathfinder - A mission that sent a lander and rover to Mars to study its surface and atmosphere (July 4, 1997).
3. Hubble Space Telescope - A space telescope launched into orbit to observe the universe (April 24, 1990).
4. International Space Station - A modular space station in low Earth orbit (November 2, 2000).
5. Voyager 1 and 2 - Two space probes launched to study the outer planets of the Solar System and beyond (September 5, 1977 and August 20, 1977).
6. James Webb Space Telescope - A space telescope designed to study the most distant objects in the universe (December 25, 2021).
7. Artemis Program - A NASA-led program to return humans to the Moon by 2024.
8. Tianwen-1 - China's first mission to Mars, which successfully landed a rover on the Martian surface (May 15, 2021).
9. Juno Mission - A mission sent to study the planet Jupiter, its moons, and its magnetic field (July 4, 2016).
10. Space Shuttle Program - A reusable spacecraft system used by NASA to transport astronauts and cargo into orbit (April 12, 1981 - July 21, 2011).