Across
- 4. a person who travels and works in space
- 6. belt a belt of asteroids orbiting the sun that exists between mars and Jupiter
- 8. the layer of gases that surround many planets and other bodies
- 9. a description of direction. Usually given as a compass direction
- 10. our closest star that provides us with light and heat
Down
- 1. a group of stars which appear to form a pattern or picture in the night sky
- 2. year the distance that light would travel in a full year
- 3. a region in space that has such an enormous force of gravity that light can not escape
- 5. huge spheres of burning gas
- 7. a measurement of time that goes for 24 hours
- 8. is the study of stars, planets and space