Across
- 2. Small bodies which orbit the sun in elongated elliptical orbits; they usually have long glowing tails.
- 4. Pieces of rock or metal from space that crash into planets or moons
- 5. Similar to a planet, but smaller, and shares its orbital space with other bodies of a similar size (two words)
- 9. An astronomical unit that is used to measure the huge distances between stars; it is the distance light travels in one year (two years)
- 10. An exploding star, much brighter than a normal star
- 11. A large group of stars that is separated from other similar groups by empty space
Down
- 1. The path followed by the Sun, planets and the constellations of the zodiac in their apparent movement across the sky
- 3. A group of stars that forms an unchanging pattern in the sky
- 6. Tiny chunks of metallic rock found orbiting the sun in a wide belt between Mars and Jupiter
- 7. Small fast-moving objects from space that burn up in the Earth's atmosphere
- 8. A huge mass of dust and gas in space remaining after a supernova