Astronomy

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Across
  1. 3. Bright points of light in the sky at night.
  2. 7. The study of stars, planets, and space.
  3. 11. Everything that exists, including stars, planets, and galaxies.
  4. 12. The path that a planet or object follows as it goes around another.
  5. 13. A person who travels in space.
  6. 15. A piece of rock or metal that burns up in Earth's atmosphere.
Down
  1. 1. Everything that exists, including stars, planets, and galaxies.
  2. 2. A huge group of stars, gas, and dust held together by gravity.
  3. 4. The empty area beyond Earth's atmosphere.
  4. 5. Large objects that orbit around stars.
  5. 6. System A group of planets that orbit around a star.
  6. 8. An instrument that helps you see faraway objects in space.
  7. 9. Finding something new and interesting.
  8. 10. A natural satellite that orbits around a planet.
  9. 14. A bright object with a tail that moves in space.