Not optimistic about the possibility of life in Europe. Tenuous atmosphere so little protection from the Sun. Also radiation is maybe too strong. Europa receives around 600 rem of radiation per day.
It's so much radiation it shines:
"Europa Glows: Radiation Does a Bright Number on Jupiter's Moon"
It's so much radiation it shines:
"Europa Glows: Radiation Does a Bright Number on Jupiter's Moon"
https://www.nasa.gov/feature/jpl/europa-glows-radiation-does...
I say we land on Titan: "Let's Colonize Titan"
https://blogs.scientificamerican.com/guest-blog/lets-coloniz...