Across
- 2. - Region of spacetime exhibiting gravitational pull.
- 4. - Group of stars forming a recognizable pattern.
- 6. - Russian term for an astronaut.
- 9. - Vehicle used for space travel.
- 12. - Interstellar cloud of dust and gas.
- 13. - Small, rocky body in space.
- 15. - Extraterrestrial life form.
- 16. - Celestial object with a tail of gas and dust.
- 17. - Optical instrument for observing distant objects in space.
- 19. - Vast system of stars, gas, and dust.
Down
- 1. - Sun and the celestial bodies that orbit it.
- 3. - Natural satellite of a planet.
- 5. - Small celestial body entering the Earth's atmosphere.
- 7. - Vehicle designed for travel or operation in outer space.
- 8. - Artificial structure in space for human habitation.
- 10. - Relating to the vast expanse of the universe.
- 11. - Celestial body that orbits a star.
- 13. - Person trained for space exploration.
- 14. - Path an object takes around a celestial body.
- 18. - Luminous celestial object in space.