Across
- 4. celestial body that (a) is in orbit around the Sun
- 6. the study of everything in the universe beyond Earth's atmosphere
- 7. a streak of light in the sky caused by a meteoroid crashing through Earth's atmosphere.
- 9. a frame that holds 2 pieces of glass or plastic to correct refractive errors.
- 12. a huge collection of gas, dust, and billions of stars and their solar systems
Down
- 1. a tool that astronomers use to see faraway objects.
- 2. a group of stars that appears to form a pattern or picture
- 3. cosmic snowballs of frozen gases, rock, and dust that orbit the Sun
- 5. a mixture of gases that surrounds the Earth
- 8. a facility for observing or monitoring environmental conditions or phenomena on Earth or in space.
- 10. something that is related to the moon.
- 11. energy from the sun that is converted into thermal or electrical energy.