Outer Space

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Across
  1. 1. A system of stars, planets, and other celestial bodies, like the Milky Way.
  2. 5. A massive ball of gas that produces light and heat, like the Sun.
  3. 6. The fourth planet from the Sun, known as the Red Planet.
  4. 7. A ball of ice and dust that orbits the Sun with a glowing tail.
  5. 9. A device used to observe distant objects in space.
Down
  1. 2. A person trained to travel in space.
  2. 3. A small rock from space that burns up in Earth's atmosphere.
  3. 4. A large object that orbits a star, like Earth.
  4. 5. A vehicle designed for travel in outer space.
  5. 8. A natural satellite that orbits a planet.