>>you could also use an ion drive or solar sails
>>~M
>>
>>>
>>>The distance Sun-Pluto is around 40 AU (40 Astronomical Units, i.e., 40 times the distance Sun-Earth). That means that for any hypothetical inhabitant or visitor of Pluto, the Sun would seem 1/1600 as bright as for an inhabitant on Earth. For a start, that means it's really cold over there, apart from being dark. Also, spacecraft can most likely no longer use solar energy, and must instead use nuclear reactors.
>
>The ion drive would still require energy.
>
>Solar sails would require the rays of the Sun.
>
>Mainly, I was thinking about satisfying the need of energy on-board, not for propulsion. Of course, a craft may need both.

i was thinking of getting there as opposed to surviving there which i think will require a quantum leap in thinking, no room for errors are you approach 0 kelvin.
~M