Re: seeding Europa - Radiation?
What about the radiation factor? If life is present on Europa, it has probably adapted to a high radiation environment.
Wouldn't any probes/satellites also need to be "shielded" in some way from radiation exposure. I know Galileo has survived, but it has taken several "hits" that have done damage.
Seeding Europa - I don't think we should put the cart before the horse so to speak. Let's get there first.
See ya, VINCE