Across 4. The branch of science that deals with celestial objects, space and the Universe. 7. A moon that orbits a planet. (2 Words) 8. A large artificial satellite that astronauts live on. (4 Words) 10. A rocky object that orbits the Sun but is much smaller than a planet, many are found in a belt between Mars and Jupiter.

Down 1. A man-made object that orbits a planet. (2 Words) 2. These are space rocks that enter the Earth's atmosphere, they are sometimes called shooting stars, 3. A group of stars that appear together as a pattern in the night sky. 5. An object that orbits a star and has enough gravity to pull it into a spherical shape and to clear awa any other objects of similar size from its orbit. 6. The star that is at the centre of our Solar System. (2 Words) 9. A chunk of ice, rock, and gas flying through space that heats up when it gets near to the Sun and has a tail.