#Darwin described how plants grow in a corkscrew-fashion but he didn't know why. Space experiments are showing it is driven by an interplay of light and gravity that drive cell signals #Columbus10Years #DarwinDay2018 https://t.co/h37dun1xKp pic.twitter.com/k8wbklRmNn

— Human Spaceflight (@esaspaceflight) February 12, 2018