"DERSS can do repairs on the space station. Also, it is equipped with all the mechanical things to do the repairs. The DERSS has a jet pack to fly on the outside of the station. Secondly, it is equipped with a missile, it will use sensors in the station to know when an asteroid will hit it. It loads into a port in the space station. And there can be more missiles in the space station. It uses the cameras as sensors and if it sees something abnormal, it can see that image against the normal image of the station. It can also be controlled by the astronauts on the ISS. The astronauts can also see what DERSS is doing. It uses the cameras as sensors and if it sees something abnormal, it can see that image against the normal station image. It can also be controlled by the astronauts on the ISS. The astronauts can also see what the DERSS is doing. It makes all decisions unless a person is controlling it at the moment. The actions are: roll, fly, launch (missiles), transmit info to mission control (on the ssi) and connect to the lunar station to charge."