Across
- 4. a collection of 8 planets and their moons in orbit of the moon
- 6. an artificial object placed to orbit the sun or moon to gather information
- 7. a unit of astronomical distance
- 9. a meteor that has fallen to earth
- 10. a small body of matter from space that has entered earth
- 11. a spot that appears time to time appearing dark by contrast
Down
- 1. a celestial body orbiting the sun
- 2. an object made from ice and dust
- 3. millions or billions of stars held together by gravitational pull
- 5. the path of a celestial object around a star, planet, or moon
- 6. a luminous point in the sky like the sun
- 8. a small rock orbiting the sun
- 10. visible by reflecting light from the sun
- 12. the star that earth orbits