Greetings Blob,
Maybe there is a higher intelligent life forms that do exists that can communicate by radio frequencies, but there is also a high probability chance such a life form would indeed exists on/under those planets. :idea:
Even if they do, they'd be too far from earth to be heard or we'd be looong gone by the time such signal(like ..hello world...) is detectable. Unless we travel to those systems with "Warp" engines. >Whoosh<
BTW, any word from SETI from those planets? I bet, they got all ears there? :-)
Regards,
Gizz