I saw a very good presentation by the CEO of Reaction Engine the other day, where he went through where they are at with the engine (Sabre) and with the vehicle

I saw a very good presentation by the CEO of Reaction Engine the other day, where he went through where they are at with the engine (Sabre) and with the vehicle (Skylon). He showed how Skylon could lift an interplanetary vehicle in pieces, just like the International Space station was built from modules. The Skylon/Sabre tech will certainly help us reach other planets, as the first 100 km to orbit is the really expensive part, and Skylon/Sabre addresses that well I think. They need some more development money though.