The ship will operate with open fusion reactor;
1H2 + 3Li6 => 2He4 + 2He4 + 22 MeV
-- Most of interior and exterior shall be made of lithium strips
and shall finally be "burned".
The ship spins, and in its axis has lights,
which produce food and oxygen for people. They perhaps hibernate long times like
hedgehogs and travel many decades until they arrive the select solar system and
colonize it.
The space probes shall cultivate the planet a long time
(~10000y) before the flight, and just before (~100y) the manned flight a space
probe will transport equipment. <<<>>> more>> Tapani Hakonen