Across
- 3. A ____ is an astronomical event that happens two times a year, when the Earth's axis is most inclined toward or away from the sun.
- 4. The _____ contains everything that exists, including all energy, matter and space.
- 5. The sun is composed of many layers of ____.
- 8. The apparent change in position of an object against a fixed background when viewed from two different lines of sight.
- 9. An ____ is a darkening of a celestial object due to the position of another celestial object.
- 10. ____ are large chunks of dust, rock, and ice that orbit the sun.
- 11. The scientific study of what is beyond Earth.
Down
- 1. ____ are huge rotating collections of gas, dust and billions of stars, planets and other celestial objects.
- 2. The stars that we see in the sky form patterns or pictures. We call these patterns ____.
- 6. ____ are a massive collection of gases.
- 7. A ____ is a piece of metal or rock in the solar system that is smaller than an asteroid.