Study Quide Test 1.docx - Observations of the universe show...

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Observations of the universe show that galaxies are… o distributed randomly throughout space o evenly spaced throughout the known universe. o gathered together into giant agglomerations such as clusters, superclusters, sheets, and walls o only present in the Milky Way. Scientist have a pretty good idea of what existed prior to the Big Bang. o True o False What is the approximate diameter of the observable universe? o 9.3 light years o 9.3 million light years o 9.3 billion light years o 93 billion light years A light year is a measure of… o Velocity o Time o Luminosity o Distance How old is the universe? o 13.7 million years o 13.7 billion years
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o 137,000 years o 13,700 years Initially, the scientific community did not accept Georges Lemaitre’s proposed hypothesis on the origin of the universe because… o He was Belgian. o He did not publish theories in peer reviewed journals. o There was no evidence to support the idea. o He was a Catholic priest. The Big Bang is merely a theory and there isn’t any scientific evidence that supports it. o True o False Edwin Hubble made two significant observations that provided the first evidence to support the Big Bang Theory. Those discoveries are ...
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