Yeah, Plus the weight and aerodynamics. I would imagine the composite has a special additive and or some kind of special coat as well. I mean Virgin Galactic is one of our first private space companies to onboard when NASA retired the shuttle program. They have connections with NASA, the defence sector, Boeing, Rolls-Royce, range Rover or Land Rover, and many more... All the other space companies private and/or on the market all have a similar goal. The space sector I feel will work in unison quite often to achieve the human space union. Communication and and synergies should fuel this space's energy moving forward, Onward, and upward...