Across
- 1. or evidence that galaxys are moving farther apart
- 4. or any substance that has mass
- 6. particles or forms of all matter
- 8. or all of space
- 10. or used to measure temperature in space
Down
- 2. or transmission of energy
- 3. or Big bang theory
- 5. Radiation or cosmic microwave background radiation
- 7. or mass per unit volume
- 9. Spectrum or the study of em radiation according to frequency or wavelengths