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Physics 202: Introduction to Astronomy – Lecture 24

Physics 202: Introduction to Astronomy – Lecture 24. Carsten Denker Physics Department Center for Solar–Terrestrial Research. Cosmic Evolution. Life in the universe Life in the solar system Life on Earth Miller-Urey experiment Alternative biochemistries Interstellar origin

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Physics 202: Introduction to Astronomy – Lecture 24

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  1. Physics 202: Introduction to Astronomy – Lecture 24 Carsten Denker Physics Department Center for Solar–Terrestrial Research

  2. Center for Solar-Terrestrial Research

  3. Cosmic Evolution Center for Solar-Terrestrial Research

  4. Life in the universe Life in the solar system Life on Earth Miller-Urey experiment Alternative biochemistries Interstellar origin Diversity and culture Intelligent life? Drake equation Search for extraterrestrial intelligence The “Water Hole” Life in the Universe Center for Solar-Terrestrial Research

  5. Chemical Evolution Center for Solar-Terrestrial Research

  6. Drake Equation • R*: Rate of star formation • fp: Fraction of stars with planetary systems • ne: Number of habitable planets per planetary system • fl: Fraction of planets on which life arises • fi: Fraction of life-bearing planets on which intelligence arises • fc: Fraction of planets on which intelligent life develops and uses technology • L: Average lifetime of a technological civilization Center for Solar-Terrestrial Research

  7. Habitable Zones Center for Solar-Terrestrial Research

  8. Anybody out there? Center for Solar-Terrestrial Research

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