Across
- 1. Hottest planet in the Solar System
- 7. Number of moons on Mars
- 8. A belt of rocks between Mars and Jupiter
- 9. A gas needed for life
- 11. The time taken for the Moon to orbit the Earth once
- 12. 365 days
- 16. Name given to planets orbiting other stars
- 17. The name of our galaxy
- 18. A plant that has a ring aound it
- 20. No longer called a planet
- 21. Name given to a star exploding
- 22. We need this for life
- 25. A planet that looks like a red star from Earth
- 26. They once ruled the Earth
- 29. An icy object that has a long tail
- 30. You have mass but no ______ in space
- 31. Largest moon of Saturn
- 32. Two probes that were sent to the outer planets
- 35. Motion of planets around the Sun
Down
- 2. When the Moon covers the Sun completely
- 3. Superman gets his powers frm this
- 4. An object that orbits a planet
- 5. Third rock from the Sun
- 6. Where you can find the Sea of Tranquility
- 10. Billions of stars form this structue
- 11. A rock from space
- 13. A metal only created in exploding stars
- 14. An object in space in which light cannot even escape from its gravitational pull
- 15. A group of stars seen in the night sky are given names
- 19. Unidentified flying objects
- 21. A film which had two Suns
- 23. The name of the space project that landed man on the Moon
- 24. The planet with a giant red spot
- 27. The brightest star seen from Earth
- 28. A metal at the cor of the Earth
- 33. The force that keeps planets in orbit
- 34. A moon of Jupiter