[sleavelessinseattle]

There are two real sources of noise that limits the radio astronomer's ability to search for very weak signals. 1) The Galactic noise halo interferes with us below 1Ghz and noise due to earth's atmosphere interferes with us above about 10Ghz. This pretty much keeps all

I have now entered the realm of far out ideas...We're not listening in the above 10GHZ range because Earth's atmosphere fuzzes up reception...We're blind to any "tool users" that operate outside of a gaseous "noiseball" planet. The mind reels! I can see I'm going to have to go over your answers to grok all the implications...This is so like Kennedy's moon speech..."We choose to do it because its HARD"...\:-D tip of the lid...

[RadioAstronomer]

I have now entered the realm of far out ideas...We're not listening in the above 10GHZ range because Earth's atmosphere fuzzes up reception...We're blind to any "tool users" that operate outside of a gaseous "noiseball" planet. The mind reels! I can see I'm going to have to go over your answers to grok all the implications

This is why it would be marvelous to have a radio telescope array on the far side of the moon. Not only would there be no atmosphere to contend with, but the moon would block all earth generated interference as well.

[2Trievers]

Will you two please stop? You're making my hair hurt! &;-)