If You See a Purple Porch Light, This Is What It Means
For example, green porch lights bring awareness to ... Here's a closer look at the purple porch light meaning. If you ever see a purple porch light, pay attention. It's there to bring awareness ...
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'Earth was purple, not green': The shocking truth about our planet’s original color
The first life forms used retinal instead of chlorophyll, absorbing green light and reflecting red and blue—turning the planet an eerie purple. Chlorophyll wasn’t always king. Retinal ...