The Big Bang Theory vocabulary

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Across
  1. 2. A model explaining that the universe expanded from an extremely hot and dense singularity.
  2. 5. A colorless, odorless, tasteless, and inert noble gas with atomic number 2, It was one of the first elements created after the big bang.
  3. 9. The scientific study of everything outside Earth's atmosphere.
  4. 12. The entire range of a
  5. 13. The displacement of electromagnetic radiation (such as light) towards longer, redder wavelengths as a celestial object moves away from the observer.
  6. 14. An instrument that separates incoming radiation (such as light or sound) into its component wavelengths and records this data to a detector.
  7. 16. The capacity to do work and produce change.
  8. 17. A pioneering American astronomer who revolutionized cosmology by proving the existence of other galaxies and that the universe is expanding there is also a telescope named after him.
  9. 18. The massive, gravitationally bound system consisting of stars, stellar remnants, interstellar gas, dust, and dark matter.
Down
  1. 1. The faint, uniform remnant radiation left over from the Big Bang
  2. 3. The narrow band of light that the human eye can see.
  3. 4. A German-American physicist and radio astronomer who co-discovered cosmic microwave background (CMB) radiation.
  4. 6. A renowned American avant-garde director, playwright, and designer.
  5. 7. A German-born theoretical physicist who developed the Theory of relativity.
  6. 8. The lightest and most abundant chemical element (atomic number 1) Another of the first elements created after the big bang.
  7. 10. The decrease in wavelength of light emitted by a celestial object moving toward an observer.
  8. 11. the totality of all space, time, matter, and energy, encompassing everything that exists.
  9. 15. A prominent British astrophysicist and cosmologist known for developing the theory of stellar nucleosynthesis.