Across
- 2. the universal force of attraction acting between all matter and exists between all bodies
- 3. natural satellite of planets
- 8. a region of spacetime where gravity is so strong that nothing, including light and other electromagnetic waves, has enough energy to escape it.
- 10. dwarf planet
- 11. Jedi master who trained Luke Skywalker
- 12. icy, small solar system body that warms and begins to release gases when passing close to the sun
- 13. small rocky metallic body in space (smaller than asteroids)
- 14. system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.
- 15. Largest planet in our solar system
- 17. second planet from the sun
- 19. an object that revolves in orbit around another celestial body
Down
- 1. leading accepted scientific theory for how the universe began from an infinitely hot and dense single point that inflated and stretched to the current expanding universe
- 4. interstellar clouds of gas and dust, formed from the remnants of dying stars and where new starts are born
- 5. first person in space
- 6. Third planet from the sun
- 7. when meteoroids enter Earth's atmosphere and burn up, creating 'shooting stars'
- 9. rocky, airless small planet like remnants left over from the early formation of our solar system
- 13. when a meteoroid survives the trip through the earth's atmosphere and lands on the earth
- 16. planet that spins in different direction to other planets in our solar system
- 18. planet with rings around it