Hello Folks. I am writing a Sci-Fi Tale set in the late 22nd century and I need some Help designing some aspects of the ship in my story. I started asking advice for this story in a different thread but seeing as how the topic as become more specific I figured it deserved a dedicated thread. The Tale is set about 250 years from now and Earth is beginning to stretch beyond The Sol system. Though I am making concessions in order to get the story going, I am trying to keep the ship as grounded in realism as possible. As such I have tried to be very conservative with Mass and fuel. It will be a one way trip, the crew will be automated and The ship will become a permanent science outpost in the Alpha Centuri system. I have the ship's propulsion worked out to where I want it but I am concerned about the shield. The ship will be moving at 11-12%c and it will be coasting between the stars for about 37 years. I need to come up with a reasonable design for a dust shield so the ship doesn't get pulverized. Others have pointed out that there is very little that can stop something hitting at 10% of the speed of light. If anyone could give me some ideas or push me in the right direction I would be grateful. Many Thanks.