Quite the awesome discovery, that’s for sure. Europa is very much covered by ice, possibly with under-ice oceans, and a very tenuous atmosphere. Mars has a whispy atmosphere, as well, and is covered with a wee bit of water (but mostly frozen CO2).
Perhaps if earth was seeded with the rudimentary building blocks of life, it came from one of these.
I’m kind of reminded of the movie 2010, where they found Chlorophyll on Europa. Hopefully next we won’t find a zillion monoliths in Jupiter’s atmosphere 😉
Happy Friday to all!