1) How does research work exactly? As I understand it, the actual research is increased by building space ports and research facilities, while potential research is decided by the size of your empire. However, it seems that when I build ports and facilities, the potential research increases, as well as the actual research. It almost seems like the actual research is a never changing fraction of the potential research. Can anybody explain this to me?
2) When you colonize a new system, a blue line appears, which connects it to the nearest system with a space port. What do these lines mean, exactly? Once, one of the lines dissappeared, leaving me with two unconnected clusters of colonies. I wasn't sure whether to be alarmed, since I'm not sure what the lines mean.

