Arkiara

- The sun turns more and more hot, and shall kill the life and humanity.
- The human race will emigrate the Milky Way.
- They colonize it over hundreds of millions of years.
- Several animals and many plants shall go with people.

Like a hotel

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