Across
- 4. The process of creating atomic nuclei from subatomic particles, especially in the early universe.
- 7. The central concept, referring to the initial expansion of the universe from a hot, dense state.
- 8. A period of extremely rapid expansion in the early universe.
- 9. Lemaitre A Belgian priest and physicist who proposed the Big Bang theory.
- 10. A transitional element between deuterium and helium, formed in the early universe.
- 14. Composite particles made of quarks, such as protons and neutrons.
- 15. Microwave Background Radiation left over from the Big Bang, serving as evidence for the theory.
Down
- 1. The ongoing process of the universe growing larger over time.
- 2. Light particles, including electrons and neutrinos.
- 3. Law Describes the expansion of the universe, showing that galaxies are moving away from each other at speeds proportional to their distance.
- 5. The point of infinite density and temperature from which the universe is believed to have originated.
- 6. A heavy isotope of hydrogen, formed during the early universe.
- 11. The stretching of light from distant galaxies, indicating their movement away from us.
- 12. The entirety of space and time, including all matter and energy.
- 13. Common particles created shortly after the Big Bang, including protons and neutrons.