Across
- 1. a cluster of stars, gas and dust.
- 4. any meteoroid that has fallen to the earths surface.
- 5. any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources, any massive self-luminous celestial body of gas that shines by radiation derived from its internal energy sources.
- 8. the part of the universe lying outside of the limits of the earths atmosphere.
- 10. the icy body that contain a solid nucleus made of water and other dark organic compounds orbiting the Sun.
- 14. planets, Mercury, Venus, Earth, Mars
- 15. the natural satellite of earth or any other planet.
- 16. rocky or metallic fragment of an asteroid, comet or planet.
Down
- 2. a small celestial body that revolves around the sun; also known as a planetoid.
- 3. any certain groupings of stars that form configurations of objects or creatures in the sky.
- 6. system the sun and the celestial bodies moving about it.
- 7. all matter and energy, including Earth, the galaxies and the contents of space.
- 9. belt the zone between the orbits of two planets that contains the majority of asteroids.
- 11. giants Jupiter, Saturn, Uranus, Neptune
- 12. the streak of light seen in the sky when a small meteoroid burns itself out.
- 13. a relatively small celestial body moving in orbit around the sun or another star.