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NASA Laying Foundation For Jupiter Moon Space Mission
coondoggie (973519) writes "NASA recently began laying out the groundwork for the technology it will need to fly an unmanned mission to Jupiter's intriguing moon Europa. Scientists say Europa — which orbits the planet Jupiter about 778 million km (484 million miles) from the Sun — could support life because it might have an ocean of liquid water under its miles-thick frozen crust. NASA said in December the Hubble Space Telescope observed water vapor above the frigid south polar region of Jupiter's moon Europa, providing the first strong evidence of water plumes erupting off the moon's surface."
"Why don't the US ask Russia which one they're going to, and beg for a lift"
One reason might be that the Russians have never (that is - not ever, not even once, not even attempted) launched a mission to the outer planets, neither have the Europeans; only the USA has shown the capability, several times over, starting in 1972 with Pioneer 10 and most recently Juno to Jupiter in 2011.
The US has plenty of unmanned launch capability and does it all the time with Atlas's and Delta's and Falcons. The US has a temporary lapse in human capable launch vehicles and spacecraft which is unfortunate, but that is being remedied on multiple fronts and to extrapolate that to, "the US should ask Russia for help to the outer planets" shows a complete ignorance of the history and state of outer planet exploration.