Up To Date | The Drake equation 2.0; Nanotech yeast; Why are plants green?; Wasp boxing

This week: New astrophysics research on the likelihood of there being intelligent life on other planets in our solar system; a study in which atomic force microscopy was used to study the biology of yeast; research into why the chlorophyll in plants doesn’t absorb peak (green) sunlight; and a look at a study that involves watching wasps fight each other in front of a crowd. Support the show.