Did you know that Earth might have once been purple? The Purple Earth Hypothesis suggests that ancient life forms used pigments different from chlorophyll, possibly making our planet’s landscape violet instead of green. This video explores how early photosynthesis could have relied on pigments like bacteriorhodopsin, what that means for our understanding of evolution, and how it could reshape our ideas about life on other planets. Dive into this fascinating concept and discover a new way to think about the history of life on Earth!
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