Technically, this forum "broadcasts into space". Sometimes i think, some of you, no offense, are actually registered from there 
P.S. I never understand how these "believers" reconcile the problems that even IF life exists, and IF it is intelligent in ways that we define as "intelligent", and IF they are sending signals, and IF we can register these signals as something other than "space noise", the biggest problem of all - they had to have existed in our intelligent form, and sending signals at precisely the same time as how many light years we are away. A star's existance is an instant in time, a planet's existance even shorter, conditions for life even shorter, the percentage of time any life is at an "intelligent" level (if that is a constant - are we that egocentric???) - even shorter. And for how many billions of years are they sending these signals to catch us in our few decades since we started listening? Who is that patient? 
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"Я это понимаю на рациональном уровне, но не могу принять на эмоциональном" --Бизнесмен Борис Березовский