1. Spacecraft: A vehicle or device designed for travel or operation outside earth’s atmosphere.

2. Rocket: A spacecraft that gets power from an engine full of chemical propellants.

3. Space probe: An unmanned spacecraft designed to explore space and transmit data back to Earth.

4. Rover: A vehicle used to explore the surface of an extraterrestrial body such as the moon or Mars.

5. Space exploration: The investigation of physical conditions in space and on celestial bodies through the use of satellites, space probes, or manned spacecraft.

6. Telescope: Optical instrument used to view distant objects.

7. International Space Station: An orbiting space station which began construction in 1998 with the cooperation of 16 nations.

8. Space station: A large artificial facility designed to be occupied for long periods and to serve as a work space to conduct research.

9. Satellite: Any spacecraft or natural object that orbits a larger, more massive object.

10. Space shuttle: A spacecraft designed to move supplies, equipment, and people between Earth’s surface and something in Earth’s orbit.