'Olbers paradox' diaporamas de présentation

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General Relativity and The Expanding Universe Michael Marshall & Michael Szopiak

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Why is the night sky dark?

Why is the night sky dark?. Monday, October 20 Next Planetarium Show: Tuesday, 6:30 pm. Thomas Digges (16 th century) proposed an infinite universe. Infinite universe is hard to reconcile with appearance of the night sky.

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Cosmology

Cosmology. Physics466. Olbers Paradox Cosmological principle Expansion of the Universe Big Bang Theory Steady State Model Dark Matter Dark Energy Structure Formation. Cosmological Principle. On large scales (greater than 100 Mpc) the Universe is homogenious and isotropic

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Evidence for a finite Universe

Evidence for a finite Universe. Stellar populations. Hertzsprung-Russell diagram. Clusters of stars. Stars can form in clusters. Perhaps most of them do, then get dispersed. Most stars in a cluster are approximately the same age. HR diagrams of clusters.

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The Big Bang Evidence

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