VIOLET PLANET. Earth's and Gaia's history Earth's and Gaia's history... science now confirms that Earth use to be Violet planet. Scientific explanation: Long before Earth became the green planet we recognize today—covered with forests, grass, and flowering plants—it may have looked completely different. Some scientists believe that Earth’s earliest microbes might have used a special pigment called retinal to absorb sunlight for energy. Unlike chlorophyll (the pigment responsible for green plants), retinal reflects purple light. If huge numbers of these microbes spread across oceans and even land, they could have given the planet a soft purple glow—so noticeable that Earth might have looked purple even from space. Just imagine viewing Earth from orbit and seeing a purple world—strange, unfamiliar, but clearly alive. This theory shows how creative life has always been. Even before plants existed, living organisms found ways to use sunlight to survive. Light and colour we...