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10 Life in the Universe - EASP 118 Astromomy Mercyhurst...

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June 10, 2008 1 EASP 118 - Astromomy - Mercyhurst College Are We Alone? A Discussion on Possibilities of Extraterrestrial Life
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June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 2 The Virgo Cluster of Galaxies
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June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 3
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June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 5 Our Timeline Scale: ( http://www. krysstal .com/scale.html )
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June 10, 2008 6 EASP 118 - Astromomy - Mercyhurst College Mediocre Assume we are ordinary…
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June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 7 Assumptions of Mediocrity 1. Life on Earth depends on only a few basic molecules 2. The atoms that make up these molecules are common to all stars 3. The laws of science that we know apply to the entire universe
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June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 8 Simple Beginnings Miller-Urey Miller-Urey
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June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 9 Results
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June 10, 2008
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Unformatted text preview: EASP 118 - Astromomy - Mercyhurst College 10 Another Theory • Did life begin away from Earth? June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 11 Let’s Have an Open Mind June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 12 The Drake Equation Intelligent civilizations in our galaxy alone = Rate of star formation throughout the galaxy’s life ! Stars with planets Habitable planets Habitable planets with life Intelligent life evolves Intelligent life with technolog y Lifetime with technolog y ! ! ! ! ! June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 13 Intelligence Propagated June 10, 2008 14 EASP 118 - Astromomy - Mercyhurst College A Brief History of Time Stephen Hawking June 10, 2008 EASP 118 - Astromomy - Mercyhurst College 15 Announcements • Exam 2 this Thursday • Only one question from tonight’s lecture / movie will be on the exam...
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