Across
- 2. - Dense region with gravitational pull so strong even light can't escape
- 7. - Engine-powered vehicle for space travel
- 8. - Vehicle engineered for interstellar voyages
- 11. - Extraterrestrial being from another world
- 13. - Rocky body orbiting the sun, usually in the asteroid belt
- 15. - Recognizable group of stars forming a pattern
- 16. - Explorer trained for space missions
- 18. - Icy celestial body with a glowing tail
- 20. - Our home galaxy, a sprawling spiral of stars
Down
- 1. - Vast system of stars, gas, and dust in space
- 3. - Celestial event where one body blocks another
- 4. - Optical instrument for viewing distant stars and galaxies
- 5. - Man-made object orbiting Earth or another planet
- 6. - Protective garment worn by astronauts during spacewalks
- 9. - Pertaining to the sun and its system
- 10. - Space rock that burns upon entering Earth's atmosphere
- 12. - Natural satellite orbiting a planet, like Earth's companion
- 14. - Force pulling objects toward one another
- 17. - Massive cloud of gas and dust in interstellar space
- 19. - The curved path of a celestial body around a star, planet, or moon