At its 2005 meeting in Fukuoka, Japan, the SETI Permanent Committee (SPSG) of the International Academy of Astronautics (IAA) voted to establish an annual Billingham Cutting-Edge Lecture, as a forum to showcase breakthrough thinking in advancing the Search for Extra-Terrestrial Intelligence. The lecture honors longtime SPSG member and former chairman Dr. John Billingham, a major force for forty years in promoting innovation within the SETI field. Speakers are to be selected by the SPSG, with one Cutting-Edge Lecture to be delivered each year at the opening of the SETI II sessions of the IAA Symposium on SETI, at the annual International Astronautical Congress.

Each year, the speaker chosen for that year will be asked to present one cutting-edge idea and its potential implications for the scientific search for extraterrestrial intelligence. To help with travel expenses and/or as a small honorarium, the speakers were initially paid $4000 US. Dr. Steven Dick, the first Billingham Cutting-Edge Lecturer (see below), generously waived his 2006 honorarium. SPSG member Dr. Allen Tough (Professor Emeritus, University of Toronto; Chief Scientist, Invitation to ETI) pledged $4000 US a year for the first five years' honoraria. The Billingham Cutting-Edge Lecture has subsequently become an uncompensated invited lecture.

• About Dr. John Billingham
• Welcome message from benefactor Allen Tough
• Greetings from honoree John Billingham
• Introduction to 2009 Billingham Cutting Edge Lecture (Portable Document Format)

Individuals selected to deliver the annual Billingham Cutting-Edge Lecture are listed below.

• See also: Annual Rudolph Pesek Lecture