The International Space Station (ISS) spans over a whopping 109 meters, equivalent to the length of an American football field.

Given the immense size of the ISS, effective communication becomes crusial.I have studied the communication among astronauts on the ISS. The astronauts has a strict schedule where they have much to accomplish. My idea is to enable communication among the astronauts through light signals that transmit different messages in various colors to remind them of their routines.