Nearly three billion years ago, oceanic mats of cyanobacteria, called blue-green algae, transformed Earth’s atmosphere by converting carbon dioxide into the oxygen we complex animals breath. In their time on the planet, they’ve survived five mass extinctions with naught but light and water. And now, in a small tank on a windowsill in England, this … Continue reading This Algae Powered a Computer for a Year With Just Water and Sunlight