But there are huge challenges confronting any future manned or unmanned expedition to the Jovian moon. For one, the icy world has no atmosphere so mounting a surface mission would require a huge amount of energy to slow the lander safely; atmospheric breaking that slows Mars missions before landing simply does not exist on Europa. A Europa landing would have more in common with Apollo than Curiosity.
Also, to access the subsurface ocean, the mission would need some kind of novel drilling technique to drop a probe through the miles of icy crust. Either that, or we'd need to develop a strategy of landing a surface mission right next to a naturally-formed crevasse.
ANALYSIS: Europa's Epsom Salt May Indicate Ocean Life
Now throw in the challenge of protecting your spacecraft from the ravages of Jupiter's radiation belts and developing an energy source - likely nuclear - that will last for the duration of the mission and you have a beast of a proposition.
So, when a team of British engineers approached the idea of Europa exploration, they stripped the mission down to the basics. The Europa mission should consist, at least in part, of a high-velocity projectile that will use brute force to kick off exploration of this fascinating world.