There is a new series on the History Channel "Life After Humans," showing how the things we've created will eventually break down and decay-- how long will it take to completely erase what humanity has made. One interesting sidebar was the Voyager probe. Eventually it will be torn apart by small metorites and asteriods. Apparently new research (ironically from the SETI project) indicates that our broadcast and television signals will break down after radiating out about 1 light year, the signal will decay to silence, meaning it wouldn't hit the nearest star system, much less any civilization on distant planets. Does anyone have more information about this? I was under the impression the signals would not decay unless something absorbed it.