Across
- 2. comets differ from asteroids in ________ composition
- 5. the Sun is composed of mostly ________
- 8. small rocky bodies that orbit the Sun
- 9. this indicates a star's temperature
- 10. a theory that our universe began with a primordial explosion
Down
- 1. the moon has no
- 3. closest planet to the sun
- 4. this type of eclipse occurs when Earth's shadow falls on the Moon
- 6. a cloud of gas and dust
- 7. more is known about the ____ than any other celestial body
- 9. groups of stars that have regularly recognized positions