Across
- 2. the planet on which we live
- 4. the curved path of a celestial object
- 5. a dark area or shape produced by a body coming between rays of light and a surface.
- 7. he region of the atmosphere and outer space seen from the earth.
- 8. the dimensions of height, depth, and width within which all things exist and move.
- 9. the period of darkness in each twenty-four hours
Down
- 1. the natural agent that stimulates sight
- 2. obscuring of the light from one celestial body by the passage of another between it
- 3. the natural satellite of the earth
- 6. particular period of the past; an era.
- 7. the star around which the earth orbits.
- 8. a fixed luminous point in the night sky which is a large