Science Q&A Space

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Across
  1. 6. These are very small, but they put out more light and more radio waves than entire galaxies.
  2. 8. This planet is known best for its rings.
  3. 9. These usually appear when very large stars burn out.
  4. 12. Collections of several million stars.
  5. 13. This planet has a blue atmosphere because it contains a great deal of methane gas.
  6. 14. The planet closest to the sun.
  7. 15. A rocky or metallic objects that orbit the sun.
Down
  1. 1. This planet has two small rocky moons called Phobos and Deimos.
  2. 2. Balls of hot gas.
  3. 3. This planet is four times bigger than earth.
  4. 4. The largest planet in the solar system.
  5. 5. It has such strong gravity that nothing can break free from it.
  6. 7. This planet is almost the same size as earth.
  7. 10. Huge spheres of rock or gas.
  8. 11. it lies at the center of our solar system.