Space Exploration

2. - The act of traveling to discover new information or resources.
3. - A small rocky body orbiting the Sun, found mainly between Mars and Jupiter.
6. - Soviet program that sent probes to Venus.
9. - A vast system of stars, gas, and dust held together by gravity.
11. - Unmanned vehicle exploring the surface of other planets.
12. - A person trained to travel and work in space.
13. - International Space Station, a space laboratory in low Earth orbit.
15. - A vehicle or device used to propel spacecraft into space.
16. - NASA's program that landed humans on the Moon.
20. - A vehicle designed for travel or operation in outer space.

1. - Occurring or situated between stars.
4. - An instrument used to observe distant objects in space.
5. - The fourth planet from the Sun, a target for exploration.
7. - NASA's Mars rover, searching for signs of past life.
8. - A specific operation or task carried out in space.
10. - Relating to the Moon or its exploration.
14. - Extravehicular activity conducted by an astronaut outside their spacecraft.
17. - The path followed by a spacecraft around a celestial body.
18. - An object sent into orbit to gather information or communicate.
19. - The act of propelling a spacecraft into space.