Across
- 4. the large, empty part of the universe that does not contain any matter
- 6. an event whereby one astronomical body passes between two other astronomical bodies
- 9. the temporary blockage of sunlight by the Moon as it travels between Earth and the Sun
- 10. a body in outer space that orbits a planet; a natural satellite
- 11. a group of solar systems, dust, and gas held together by gravity
- 13. the spinning of a celestial body, such as a planet, around an axis
Down
- 1. everything that exists in, on and around the Earth
- 2. when the moon passes directly behind the Earth and into its shadow
- 3. the galaxy containing the Sun and its solar system, along with millions of other stars in a spiraling pattern, part of which can be seen as a band of "milky" diffuse light across the night sky
- 5. a small object made of rock or metal that orbits the sun
- 7. a massive ball of gas in outer space that gives off heat, light and other forms of radiation
- 8. Phases) a description of the amount of illumination of the Moon as seen from Earth at different points in its cycle
- 9. a system of objects that revolve around a star
- 10. a streak of light in the sky that forms when a piece of rock from space burns up in Earth's atmosphere
- 12. a large circular mass that revolves around a star