Earth Sciences 1086F/G Chapter 1: Chapter 1
5 Aug 2020
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Can it proven to be true: an educated guess based upon observation (even one observation, a hypothesis can be supported or rejected through experimentation or more observation. If evidence accumulates to support a hypothesis, then the hypothesis becomes accepted as a good explanation of some phenomenon and becomes a theory. However, the big bang created space and time in an instant and thus time and space had a finite beginning. The recession of stars/galaxies (as described by hubble"s law: 2. The characteristics of cosmic microwave background radiation: 3. He demonstrated that there were many galaxies in the universe not just the one we are in (the milky way galaxy: 2. He showed us how to measure distances in space. In simplest terms, you can calculate how far from earth an object is by dividing its velocity (obtained from its amount of redshift) by the rate of expansion factor.
