Signal

Hullo guys. Below are images of the Hubble Telescope and the SETI research facility for extra-terrestrial sounds.

SETI Observations - "Over great distances that gas and dust absorb many types of radiation but radio waves pass through nearly unimpeded".

I am just thinking if this is an assumption or the accepted truth. What if there are invisible acoustic panels at the earth's perimeter which block the radio signals? Then grounded satellite disks cannot receive the signals.

I have the basic knowledge on this. But they moved the Hubble telescope into outer space because there are obstructions like the clouds. So is it possible to move the SETI research into outer space as well? Of course we have radio and television signals from satellites. What I am saying is beyond the orbit. 

Hey I am just throwing ideas and you expert guys can answer.