Aliens can’t hear us, says astronomer

Aliens can’t hear us, says astronomer. Wrong. While com­mer­cial broad­cast­ing may be reliant on satel­lites and dig­i­tal, there are still plenty of non-digital sig­nals being sent out of the atmos­phere by ama­teur radio oper­a­tors. Of course, ama­teurs don’t broad­cast so it will be harder to detect and lock onto, but there’s still RF head­ing out into space.

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