Before the solicitation for the foundation, the 100 Year Starship project was preceded by a conference held in Orlando, Florida, from September 30 to October 2, 2011, co-sponsored by DARPA and NASA, organized by DARPA's Tactical Technology Office director, David Neyland.[1][2] The conference included presentations on the technology, biology, physics, philosophy, sociology, and economics of interstellar flight.[3] Selected papers from the conference were published in the Journal of the British Interplanetary Society.[clarification needed]