Brian Todd O'Leary (January 27, 1940 – July 28, 2011) was an American scientist, author, and former NASA astronaut. He was a member of the sixth group of astronauts selected by NASA in August 1967. He was 1983–1985, chairman of the board of directors of the Institute for Security and Cooperation in Space; 1990, founding board member of the International Association for New Science; 2003, founding president of the New Energy Movement; 2007-2011, Fellow, World Innovation Foundation.
A remote viewing experience in 1979 and a near-death experience in 1982 initiated O'Leary's departure from orthodox science. Beginning in 1987, O'Leary increasingly explored unorthodox ideas, particularly the relationship between consciousness and science, and became widely known for his writings on "the frontiers of science, space, energy and culture". He lectured extensively since the 1980s on science and consciousness, in places such as the Findhorn Foundation, Esalen Institute, Omega Institute, Unity Churches, Religious Science churches and Sivananda Yoga Vedanta Centres. He extensively traveled internationally during his investigations, which included visiting scientific laboratories and mystics such as Sathya Sai Baba. In the mid-1990s, O'Leary began to write about his investigations regarding innovative technologies that allegedly utilize energy sources that science does not currently recognize (also called new energy), and how those technologies can transform the planet and the human journey. O'Leary believed there is an extraterrestrial presence on Earth, its relationship to those potentially transformative technologies, and their conjoined organized suppression. O'Leary also participated in the Face on Mars debate. wiki
With his artist wife Meredith Miller, in 2008 he co-established the Montesueños Eco-Retreat in Vilcabamba, Ecuador, which is devoted to "peace, sustainability, the arts and new science".
- Conference speaker, New Energy Movement 
- Exploring Inner & Outer Space 1989.
- The Second Coming of Science 1993.
- Miracle in the Void: Free Energy, Ufos and Other Scientific Revelations 1996.
- Reinheriting the Earth 2003.
- The Energy Solution Revolution 2009.