Across
- 3. Most astronauts are experts in ...........
- 5. Jupiter’s giant storm is called ...........
- 8. A spiral galaxy that measures about 100.000 light-years from side to side.
- 9. The red planet.
- 10. A person travelling in space.
Down
- 1. A spacecraft designed to stay in orbit for many years.
- 2. The first person in space. He orbits Earth in the Soviet spacecraft Vostok 1.
- 4. A natural object that travels in orbit around a planet.
- 6. The center of our Solar System is a relatively small star known as a yellow dwarf.
- 7. The blue planet.