The Big Bang Theory

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Across
  1. 2. The lightest and most abundant element in the universe, constituting 75% of normal matter, primarily powering stars.
  2. 4. The scientific study of celestial objects, and phenomena beyond Earth's atmosphere, utilizing physics and chemistry to understand their properties and behaviour.
  3. 5. 1889-1953,he was an American astronomer, proved that many objects previously thought to be clouds of dust and gas classified as nebulae were actually galaxies beyond the Milky Way.
  4. 10. 1926-2013, he was a philanthropist, known for the discovery of Cosmic Microwave Background Radiation.
  5. 13. Faint, nearly uniform radiation filling the universe, representing the cooled remnant "first light" from the Big Bang, released roughly 380,000 years after the universe's birth
  6. 16. A massive, gravitationally bound system consisting of stars, stellar remnants, interstellar gas, dust, and dark matter, ranging from dwarfs to giants.
  7. 17. Colorless, odorless, non-toxic noble gas with the lowest boiling point of any element
  8. 18. 1879-1955, he was a theoretical physicist and activist, made the worlds most famous equation, E = mc².
Down
  1. 1. 1933-2024, he was an American physicist, shared the 1978 Nobel Prize in physics with Robert Woodrow Wilson for their discovery of Cosmic Microwave Background Radiation
  2. 3. 1915-2001, nicknamed "The father of the Big Bang", he was an English astronomer, he formulated the theory of stellar nucleosyntheisis in the influential B²FH paper
  3. 6. The entire range of light radiation, spanning from low-energy, long-wavelength radio waves to high-energy, short-wavelength gamma rays.
  4. 7. All existing matter, energy and space.
  5. 8. The narrow band of electromagnetic radiation, detectable with human eye,ranging from violet to red.
  6. 9. The prevailing scientific model explaining that the universe began approximately 13.8 billion years ago from an extremely hot, dense point
  7. 11. An instrument that splits light or other radiation into its component wavelengths to record a spectrum.
  8. 12. The capacity to do work or cause change, existing primarily as kinetic or potential energy.
  9. 14. An increase in the wavelength, or equivalently, a decrease in the frequency of electromagnetic radiation.
  10. 15. A decrease in electromagnetic wavelength caused by the motion of a celestial object moving toward an observer.