Across
- 2. something that is very old or has existed for a long time
- 3. a special kind of scientist that takes a spaceship to outer space to study things like asteroids, the earth's atmosphere and the moon
- 6. regular, repeating path that one object in space takes around another one
- 9. to send something into the air or water, or to start something new
- 12. a jacket of gases that surrounds our planet
- 13. a group of stars. The groups are identified according to patterns that people have seen in the stars
Down
- 1. the opposite direction of the way the hands of a clock move
- 4. having a strong desire to do something and not giving up easily
- 5. large natural objects that orbit, or travel around, stars
- 7. something is located inside or at the center of something else
- 8. tools that allows people to see distant objects by gathering and focusing light
- 10. Greater in importance, number, quantity, or extent
- 11. something is related to, derived from, or caused by the sun
