Interstellar travel could conceivably be managed by self-assembling spaceships, which would land on a convenient planet or meteor, assemble new parts from available raw materials, make repairs, and be on their way again.
Interstellar travel could conceivably be managed by self-assembling spaceships, which would land on a convenient planet or meteor, assemble new parts from available raw materials, make repairs, and be on their way again.