Across
- 2. tool for peering into the night sky
- 3. force that keeps us grounded
- 5. the universe as a whole
- 11. lunar phase that lights up the sky
- 13. orbiting science lab for astronauts
- 14. peaceful hobby under the night sky
- 16. icy traveler with a glowing tail
- 19. colorful cloud where stars are born
- 20. region where gravity consumes all
- 21. ringed planet sixth from the sun
Down
- 1. rocky body orbiting the sun
- 4. brave human explorer of outer space
- 6. group of planets orbiting our sun
- 7. our galaxy, home to Earth
- 8. launches from Earth into orbit
- 9. event where moon or sun is hidden
- 10. shooting star blazing through atmosphere
- 12. sample returned from lunar missions
- 15. exploding star with temporary brightness
- 17. hunter-shaped constellation seen in winter
- 18. hypothetical life from another world