Space Crossword!

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Across
  1. 2. Relating to the former Union of Soviet Socialist Republics (USSR).
  2. 5. An object placed in space that travels around a planet and sends information.
  3. 7. The surname of the first person to walk on the Moon.
  4. 9. A powerful vehicle used to launch objects into space.
Down
  1. 1. Large systems of stars, gas, and dust found throughout the universe.
  2. 2. A vehicle designed to travel through outer space.
  3. 3. The path followed by a planet, moon, or satellite around another object in space.
  4. 4. The first woman to travel into space and orbit the Earth.
  5. 6. The first artificial satellite launched by the Soviet Union in 1957.
  6. 8. The natural satellite of Earth that astronauts first visited in 1969.