Across
- 2. big spherical things, we live on one
- 3. smaller planet like objects that orbit a planet
- 4. the biggest planet in the solar system
- 5. the center of the solar system
- 8. a enormous collection of stars
Down
- 1. named after the roman god of war
- 2. a moon of mars, named after the god of phobias
- 3. shares the name of a poisonous substance
- 6. all the galaxies; everything
- 7. big glowing balls of energy