Skylon Spaceplane Project Troy Mars Mission

Alan Bond from Reaction Engines presents a talk about the latest developments about Skylon and Project Troy. This was one of a series of talks from the UK Mars Society Conference 2012 and was held at the National Space Centre in Leicester on the 25th August.
Skylon is a concept for a totally re-usable single-stage rocket plane that can reach low earth orbit. Project Troy is a concept for a large space-based assembly of a transportation system which can ferry people and cargo from Earth to Mars with all mission infrastructure being totally re-used for any future missions.