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• Radio astronomers picked up what seemed to be a radio noise that came from all directions

  1965
• Princeton University acknowledged that the radio noise was a distant echo of cosmos radiation
• The theory was that this cosmos radiation was a remnant of particles created after the big bang
• Theory of the universe

  The universe is constant. It was born, and it developed in stages. Today scientists still believe that the universe continues to change
• Albert Einstein provides a significant clarification on the big bang, asserting that the event did not just create matter, but space-time as well
• According to Einstein, There was nothing for the big bang to explode into
• The birth of planets is also attributed to the big bang
• The earth was formed

  Four to six billion years ago
• The study of rocks and the fossils embedded in them has provided the most important clues to the early beginnings of our planet
• Radiometric Dating

  Allows scientists to determine the ages of rock strata in thousands or millions of years before the present
• Radiometric Dating

  Calculation of when the decay process began based on certain radioactive isotopes such as potassium-40 to stable isotopes such as argon-40
• Carbon-14 dating

  Another dating method based on the decay of radioactive carbon-14 to stable carbon isotopes