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