Across
- 3. once a piece of Earth
- 5. the space is silent due to lack of
- 7. Comet that'll next appear in 2061
- 9. 99% of mass of our solar system is
- 12. our galaxy's black hole
- 14. A failed star
- 15. stars that spin 600 times per second
Down
- 1. closest star to us
- 2. most reflective body in our solar system
- 4. number of dwarf planets in our solar system
- 6. the planet that rotates in opposite direction to Earth
- 8. the spherical cloud in which boundary of our solar system ends
- 10. planet made of diamonds
- 11. blue sunsets happen in
- 13. orbits sun on its side