an event road map 1. a container of life 2 star formation and element creation 3
TRANSCRIPT
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An Event Road Map
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A Container of Life
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Star Formation and Element Creation
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Supernova are your Mother
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Expect Solar System Formation
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Expectations are Confirmed
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Now we have a Rock – how does life arise?
Water on Earth:
1. Outgassing – NO2. Delivered Later3. Delivery
Mechanism1. Asteroids –
Maybe2. Comets –
Probable
4. NEED JUPITER
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The Water Network of the Solar System
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Life Begins in the Oceans
Result is the production of simple organic compounds.
Energy source could be lightning in the atmosphere
Or
Heat Vents in the Ocean
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Now Need to Make Macro Molecules
Trial and Error Process to make
RNA/DNA
Took about 1 Billion years
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Then simple to complex:
DNA needs protection from Oxygen or it dies.
Oxygen production comes from aerobic organisms but they need chlorophyll to capture enough solar energy to metabolize H2O and give off Oxygen as a waste product.
Chlorophyll is a Big Molecule – that’s why it works
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Chemistry Now gets in the Way
It takes 2 Billion years for this process to stop
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Takes Time to Make Ozone Layer
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Land Stimulates Diversification
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Now you need to Survive!
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So Life is Tough!
Long Term Survival is Difficult. Period.
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Are we Alone?
10 1 1 1 1/10
1/10
=1% of 1 Billion10 Million
=1 million
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Implications of N= 1 million
1 Civilization per 100,000 starsNearest random one is 1000 light years
away!Life (all life) is RARE!If intelligent life is UNIQUE to the Earth then
either: F_i = 1 in a billion L = 1000 (for everyone) !!
This seems unlikely and therefore, with proper planetary management, one day we will be in the club and know the answer.