Astronomy

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