SPACE!

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Across
  1. 4. the layer around the Earth
  2. 6. humans do this to discover more about the universe
  3. 7. a competition between the USA and the former Soviet Union in the 1960s
  4. 8. the Earth rotates around the sun
  5. 9. the place where extra-terrestrials live
Down
  1. 1. these orbit the Earth and are utilised by GPS devices
  2. 2. a facility built by the Russians orbiting the Earth
  3. 3. food altered genetically by scientists
  4. 5. the act of changing genes
  5. 6. the Columbia disintegrated in 2003
  6. 10. an astronaut from Russia!
  7. 11. a holiday out of this world!