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LIFE IN THE UNIVERSE
Summary of previous class
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Today's Lecture
This is NOT about magic, UFOs, or alien abduction....but a rigorous
scientific approach
Why search for it?
Life on Earth
Building blocks of Life
Finding organic molecules
The Miller-Urey experiment
Apparatus
Life in the Solar System?
Early missions
Viking Lander 1
Meteorities on Earth
AHL 84001
************************ LIFE ON OTHER PLANETS ***********
Life Elsewhere
What about other systems?
The Drake equation
Here is the equation
Utility of Drake equation
Factor 1: Star formation rate
Factor 2: Fraction with planets
How do you detect a planet?
Factor 3: Fraction of planets suitable
Factor 4: Fraction with life
Factor 5: Fraction with Intelligent life - Is intelligence inevitable?
Factor 6: Fraction where Civilization can arise - Does an intelligent specie always develop technology?
Factor 7: Lifetime of Civilization - How long will we live?
The result
************** COMMUNICATING WITH OTHER CIVILIZATIONS ******
Communication
Way to communicate
1. Message in a bottle
2. Sending a message
3. Receiving a message
SETI
The Future
****************** FINAL REMARKS **********************
Interstellar travel
Why bother?
Deep questions
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Next Class: Review for the finals