Though they don’t get the same hype as space missions that face outward, ESAs earth observing satellites are super exciting. The data is open, and people come up with things to do with it the mission designers never imagened. Sentinel-2, for instance, was supposed to track things like icebergs, but people have also used the data to detect buildings with unstable foundations by measuring small changes in the orientation of their roofs. I’m curious to see all the un-thought-of uses Aeolus will be used for!