The answer to achieiving mass spaceflight lies in going small

Aerospace engineer John Bradford is passionate about humanity becoming a multi-planetary species not only because he is a self-proclaimed sci-fi fan but also because he believes it will become necessary for the continuation of the human species. In this talk, John offers a science-driven argument for why mass spaceflight can only be accomplished by thinking small. John is president of SpaceWorks Enterprises where he has worked on cutting edge technologies related to spaceflight for DARPA and the Air Force Research Lab.