Outer Space

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Across
  1. 5. The explosion of a star.
  2. 8. A group of planets, meteors or other objects that orbit a large star.
  3. 9. A vehicle used to travel in space.
  4. 11. A group of stars seen as forming a design.
  5. 14. The use of astronomy and space technology to research outer space.
  6. 15. An invisible line around which an object rotates.
Down
  1. 1. Includes everything in outer space.
  2. 2. The outermost part of the sun’s atmosphere.
  3. 3. An area in space where gravity pulls so much, that not even light can escape.
  4. 4. The collapsed core of a massive supergiant star.
  5. 6. The study of space.
  6. 7. A giant cloud of dust and gas in space.
  7. 10. A layer of the atmosphere of earth.
  8. 12. A system of many types of matter held together by gravity.
  9. 13. An imaginary boundary where the sky meets the ground or sea.