[2021] Hey, so uh… I found out why Europa is basically uninhabitable above the surface.

So, turns out they weren’t making up Jovian radiation. Jupiter reflects so much of the Sun’s rays it actually makes a sh*t-ton radiation on its own, the ionizing bad stuff. Europa doesn’t have its own magnetosphere, so it can’t filter out any of the radiation.

For context, standing on the surface would dose you with 5.4 Sv (540 rem) of radiation per day. THATS 1,800 f*ckING TIMES THE RADIATION YOU RECEIVE ON EARTH IN A FULL YEAR. Staying on the surface for 24 hours would dose you with enough radiation to give you a 50/50 chance of death from radiation poisoning within the next 30 days.