bdking writes: Astronomers continue to discover planets outside our solar system, with the latest being located in the constellation Pictor, about 42 light years from Earth. This comes two weeks after an exoplanet was found "just" 4.4 light years from our planet. What are the various techniques scientists use to identify exoplanets?
"A complex system that works is invariably found to have evolved from a simple
system that worked."
-- John Gall, _Systemantics_