Purple may have been the first color of life on Earth because early organisms absorbed the sun’s energy using the molecule retinal instead of Chlorophyll, important for photosynthesis and a giving greenish hue.
Purple may have been the first color of life on Earth because early organisms absorbed the sun’s energy using the molecule retinal instead of Chlorophyll, important for photosynthesis and a giving greenish hue. NASA
Purple may have been the first color of life on Earth because early organisms absorbed the sun’s energy using the molecule retinal instead of Chlorophyll, important for photosynthesis and a giving greenish hue. NASA

A purple Earth? Life began as a shade of lavender — and alien life may, too, study says

October 22, 2018 11:11 AM