Life in the Universe
Prof. Scott Gaudi
Did Earth Form with a lot of Water?
So where did the water come from?
Water from Comets
Volatiles released by outgassing
Early Earth atmosphere had little oxygen
Genesis of Life is very poorly understood
Origin of Complex Organics
Complex Organics (or Life) from Space?
From Organics to Replication
From Molecules to Prokaryotes
Nature of Early Life
Photosynthesis and Oxygen
History of Oxygen on the Earth
Timeline of Complexity
Rise of Homo Sapiens
It took less than a few hundred million years for life to develop.
It took ~50 times longer for intelligent life to develop.
See A Note about Graphics to learn why the graphics shown in the lectures are generally not reproduced with these notes.
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