Across
- 1. person trained to travel in a spacecraft.
- 3. vehicle designed to carry people into space.
- 5. person who studies space.
- 9. natural or artificial body in orbit around a planet.
- 10. force that pulls to objects together.
- 12. that allows us to see into space.
- 14. rocky objects that orbit the Sun.
- 15. push or pull on an object when it interacts with another.
Down
- 2. that exist in space.
- 4. planet we live on
- 6. cloud of dust and gas in space.
- 7. way:our universe that has 200 billion stars.
- 8. piece of rock or metal that lands on Earth’s surface.
- 11. star witch earth orbits around
- 13. giant ball made of hot gases.