We don't know how life got its start. But as more evidence emerges, explains astrobiologist Caleb Scharf, only a few theories are emerging as leading contenders. Scharf is the director of the Columbia Astrobiology Center at Columbia University. calebscharf.com
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Episode 8. Kate Adamala: Can We Make Life?
Episode 7. Donato Giovannelli: Warm Ponds Or Hellish Vents–Where Did Life Begin?
Episode 6. Steven Benner: How Weird Can Life Get?
Episode 5. Jeremy England: Why Does Life Exist?
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