Space

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Across
  1. 2. celestial body consisting of a mass of hydrogen and helium gas held together by its own gravity, emits light
  2. 6. a large cloud of gas and dust where stars are born
  3. 7. a small rocky body that enters the earth's atmosphere
  4. 9. a collection of small and large bodies that orbit the Sun
Down
  1. 1. the remains of a star that exploded in a supernova
  2. 3. a small rocky body that orbits the sun
  3. 4. space and all of the energy and matter in it
  4. 5. a large collection of stars, gas, and dust, that is held together by gravity
  5. 8. a small icy body that orbits the sun with a "tail" of gas and dust particles