Across
- 1. - The center of our solar system.
- 4. - A small space object that burns up in Earth's atmosphere.
- 7. - A small rocky object in space.
- 8. - Earth's natural satellite.
- 9. - An object that orbits a planet or star.
- 10. - An astronaut's activity outside a spacecraft.
- 12. - A vast system of stars and space dust.
- 14. - A celestial object with a tail of gas and dust.
Down
- 2. - An unidentified flying object, often associated with aliens.
- 3. - Someone who travels in space.
- 5. - An instrument used to observe distant objects.
- 6. - A region in space where gravity is extremely strong.
- 9. - A bright point of light in the sky.
- 11. - A large celestial body that orbits a star.
- 13. - A vehicle that can travel into space.