Across
- 3. Length of wave, crest to crest.
- 6. Bang Beginning of universe, immense explosion.
- 8. Distance light travels in a year.
- 10. All existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.
- 11. Name,Playes 4 sports.
- 13. Universe stretching, galaxies moving away.
- 14. Glowing balls of gas, shine in the sky.
- 15. Starting point, beginning or source.
Down
- 1. Law stating galaxies move apart; universe expansion.
- 2. The displacement of spectral lines towards longer wavelengths (the red end of the spectrum) in radiation from distant galaxies and celestial objects. This is interpreted as a Doppler shift that is proportional to the velocity of recession and thus to distance. Compare with blue shift.
- 4. Released, like light from a source.
- 5. Change in sound or light waves from moving source.
- 7. Proof or signs supporting a claim or theory.
- 9. Energy waves, like light or heat, traveling.
- 12. Vast groups of stars and cosmic matter.