Across
- 2. / An example is "the northern lights"
- 6. / place of millions of stars and other objects
- 7. / someone that gets to go to space
- 9. / a unit of temperature
- 11. / the way planets go around the sun
- 12. / we can see this at night
- 14. / we can use this to see far away
- 15. / amount of volume
- 16. / the middle of the planet
Down
- 1. / what orbits the sun
- 3. / the year is a new year
- 4. / the force that pushes down
- 5. / how the universe started
- 8. / how we know all about the solar system
- 10. year / approximately 5.9 trillion miles
- 13. / it is another name for "the shooting star"