Space Exploration

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Across
  1. 7. The path an object takes as it revolves around another in space.
  2. 9. Vehicle designed to travel in outer space propelled by engines.
  3. 11. Term used to describe potential extraterrestrial life forms.
  4. 12. Instrument used to observe distant objects in space.
  5. 13. Relating to the Moon or its characteristics.
  6. 15. Small icy body that develops a bright tail when near the Sun.
  7. 16. The act of traveling and investigating new places.
  8. 18. Trained individual who travels and works in space.
  9. 20. Name of the NASA program that sent humans to the Moon.
Down
  1. 1. Uncrewed vehicle designed to explore the surface of a planet.
  2. 2. A cloud of gas and dust in space where new stars are born.
  3. 3. Uncrewed spacecraft sent to gather data in space.
  4. 4. A planet that orbits a star outside our solar system.
  5. 5. Occurring or situated between stars.
  6. 6. Artificial object placed in orbit around a celestial body.
  7. 8. Abbreviation for the International Space Station.
  8. 10. Russian term for a person who travels in space.
  9. 14. The fourth planet from the Sun, often targeted for exploration.
  10. 17. Vast system of stars, gas, and dust bound by gravity.
  11. 19. Relating to the Sun or the Sun's energy.