He showed many videos, one in particular was how NASA has robot teams (Yeap) and that if the land vehicle cannot navigate itself further as it comes to an edge, then a robot helicopter flies ahead to map the land and feeds data back to the vehicle.
An interesting fact presented by Dr Margasahayam was that it costs him about $10,000 to send a bottle of water (payload) into space - which is probably why his closing remarks were 'Innovate or Evaporate'.
Read his NASA Biography here.