vocabulary relating to our space

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