** In this video, British science writer Philip Ball advocates a search for extraterrestrials based on the assumption that they share extremely little with humans in terms of biology, ways of thinking, etc (via Leonard David)
** Here is a Google talk by Paul Horowitz of Harvard about, “The Search for Extraterrestrial Intelligence“:
Paul Horowitz visited Google’s office in Cambridge, MA to discuss the SETI (Search for Extraterrestrial Intelligence) project at Harvard University.
Establishing an electromagnetic communications link across a thousand light-years presents unique technological challenges. In his talk, Prof. Horowitz visits some highlights of the science and technology of SETI — Do THEY exist? Is communication possible? What is the best way? Is this just completely insane? — and describes interesting searches his project and others have been doing.
Paul Horowitz is a Research Professor of Physics and of Electrical Engineering at Harvard, and is co-author of The Art of Electronics.
** The SETI Institute takes many approaches to the search for ET. Here is a talk by Eliot Gillium about looking for optical rather than radio signals from ET – A Novel Approach to OSETI:
The Search for Extraterrestrial Intelligence is a blind search across many dimensions—space and time being the most obvious. Every good SETI researcher does their very best to make the minimal reasonable assumptions, but time and resources are always limited, so various strategic optimizations have been adopted. A potentially more efficacious approach is to simply cover as much of the search space as possible. The SETI Institute has made this the starting point of their ambitious and groundbreaking idea to survey the entire night sky, all night, every night at optical wavelengths. This talk will further detail the motivation and planned operation of this new instrument, a panoptic eye for interstellar laser pulses.