Astrobiology

  1. Search for Extraterrestrial Intelligence
    1. SETI Foundations
      1. Drake Equation
        1. Rate of Star Formation
          1. Fraction with Planets
            1. Habitable Planets per System
              1. Fraction Developing Life
                1. Fraction Developing Intelligence
                  1. Fraction Developing Technology
                    1. Civilization Longevity
                    2. Equation Limitations
                      1. Modern Parameter Estimates
                      2. Fermi Paradox
                        1. Paradox Statement
                          1. Proposed Solutions
                            1. Great Filter Hypothesis
                              1. Rare Earth Hypothesis
                                1. Technological Singularity
                                  1. Self-Destruction
                                    1. Zoo Hypothesis
                                      1. Transcension Hypothesis
                                    2. SETI Methodologies
                                      1. Radio SETI
                                        1. Water Hole Frequency
                                          1. Targeted Searches
                                            1. All-Sky Surveys
                                              1. Signal Processing
                                                1. Breakthrough Listen
                                                2. Optical SETI
                                                  1. Laser Pulse Detection
                                                    1. Continuous Wave Searches
                                                      1. Infrared SETI
                                                      2. Technosignature Searches
                                                        1. Dyson Spheres
                                                          1. Industrial Pollution
                                                            1. Artificial Illumination
                                                              1. Megastructures
                                                            2. Communication Considerations
                                                              1. Message Content Design
                                                                1. Universal Languages
                                                                  1. Mathematical Concepts
                                                                    1. Physical Constants
                                                                      1. Cultural Assumptions
                                                                      2. Active SETI and METI
                                                                        1. Arecibo Message
                                                                          1. Voyager Golden Records
                                                                            1. Modern METI Projects
                                                                              1. Ethical Considerations
                                                                                1. International Protocols

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                                                                              7. Exoplanets and Astrobiology

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                                                                              9. Astrobiology Mission Design and Technology