Across
- 5. A small body of matter from outer space that enters the earths atmosphere
- 6. A system of millions or billions of stars, held together by gravitational attraction
- 7. A planet that orbits a star outside the solar system in the Habitable Zone
- 9. A celestial object consisting a nucleus of ice and dust, and its tail points away from the sun
- 10. System The collection of 8 planets and their moons in orbit around the sun
Down
- 1. All existing matter and space considered as a whole
- 2. The natural satellite of only the Earth, visible day and night by reflection light from the sun
- 3. A spherical shape that clears its path, and it has an axis
- 4. Planet A celestial body resembling a small planet, lacking certain characteristics
- 8. A small rocky body orbiting the sun
- 10. The star around which the Earth orbits, provides light and warmth