[Kamog]

Great stuff... I wonder if they are somehow able to steer the craft so that it doesn't just fly directly away from the sun, but is able to navigate in different directions.

By the way, I have never quite understood how sailboats are able to sail upwind using something called "tacking". It's some sort of a technique where they sail in a zigzag pattern so that it doesn't move directly against the wind but always at an angle to it, and somehow they can achieve an overall movement upwind. Anyway, could they do that with solar sails?