Space Exploration

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Across
  1. 3. A journey into space with a particular goal.
  2. 4. The path followed by a planet, moon, or satellite around another object.
  3. 5. A space traveller from another world.
  4. 7. A protective layer of gases surrounding a planet.
  5. 13. A large object that travels around a star.
  6. 14. A glowing object in the sky that produces its own light.
  7. 16. A piece of rock or metal from space that reaches the ground.
  8. 18. The force that pulls objects toward planets and other large bodies.
  9. 19. A deep, bowl-shaped hole found on the surface of the Moon.
  10. 20. A device used to observe objects that are very far away.
Down
  1. 1. A vehicle designed to travel through space.
  2. 2. A scientist who studies objects and events beyond Earth.
  3. 6. The moment a rocket leaves the ground and begins its journey.
  4. 8. A rocky object that travels through space and can enter Earth's atmosphere.
  5. 9. A person who travels to discover places they have never been before.
  6. 10. A huge system containing stars, planets, gas, and dust.
  7. 11. A large body in space that has enough gravity to become roughly round and travels around a star.
  8. 12. A human-made object that travels around Earth or another planet.
  9. 15. Everything that exists, including all space, stars, planets, and galaxies.
  10. 17. A powerful machine that carries spacecraft away from Earth.