Life Beyond Earth Banner Are We Alone? Is Anybody Listening? Resources
Drake Equation | The Infoshpere | SETI | UFOs | Write to an Alien
Earth animated GIF The Infosphere For nearly a century, we have been inadvertently leaking information about ourselves into space at the speed of light. A thousand stars lie in the resulting sphere of radio and television broadcasts from Earth. The farther these stars are from us, the older the news they — and perhaps their inhabitants, if any — are receiving. These ever-expanding broadcasts create what is called the infosphere.
endcap 90's Radio
Star Alpha Centauri
50's Radio
Star Capella
Jazz Era Radio
Star Beta Pictoris
Early Radio
Star Mizar
The idea of communicating with extraterrestrials existed long before we unknowingly created an infosphere. In the 19th century, scientists proposed a "Flaming Triangle" approach to interplanetary communication. Learn more. Flaming Triangle
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