SPACE CROSSWORD

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Across
  1. 3. A collection of stars, dust, and gas bound together by gravity.
  2. 5. A tool used to observe distant objects in space.
  3. 8. The path one object takes around another in space.
  4. 9. The star at the center of our solar system.
Down
  1. 1. An astronaut's work area.
  2. 2. The force that attracts a body toward the center of the earth, or toward any other physical body having mass.
  3. 4. A vehicle designed for travel or operation in outer space.
  4. 6. A reusable spacecraft that transports people and cargo to and from space.
  5. 7. The natural satellite of Earth.