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1. Define cosmology and outline two of the important unanswered questions in this branch of astronomy.
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2. How is the geometry of the Universe related to the mass of the Universe?
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3. Describe the three possible geometries of the Universe and the
fate of the Universe that each implies.
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4. What is the Cosmological Principle?
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5. What is gravitational lensing and how is it a consequence of Einstein's General Relativity?
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6. What are gamma ray bursts and what evidence suggests they are not "local" but are at cosmological distances?
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7. What are some of the suggested mechanisms for the large energies associated with gamma ray bursts?
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