Across
- 2. balls with shiny tails.
- 4. /It's a star that explodes
- 5. / It is a substance that occupies empty space
- 8. /Star groups
- 9. /They hover around the stars in orbits.
- 10. /They are the very bright spots that we see at night in the sky.
Down
- 1. /Huge cloud of space dust
- 3. /
- 6. /Small spheres of ice and rocks that revolve around the planets
- 7. /It's a giant ball of incandescent gas.