SPACE EXPLORATION. “One application that highlights the advantages of self-reconfigurable systems is long-term space missions. These require long-term self-sustaining robotic ecology that can handle unforeseen situations and may require self repair. Self-reconfigurable systems have the ability to handle tasks that are not known a prioritise especially compared to fixed configuration systems.”
http://en.m.wikipedia.org/wiki/Self-Reconfiguring_Modular_Robotics