Reply to post: Re: It's a long way to the chemist, etc...

ALIENS are surely AMONG US: Average star has TWO potentially Earth-like worlds

Anonymous Coward
Anonymous Coward

Re: It's a long way to the chemist, etc...

The signals we've made for most of the last 100 years have also been very weak and nondirectional. There's this thing called the inverse square law. I can't be bothered to do the maths, but anybody looking for radio waves from this planet from even a few light years away is going to be looking for tiny signals against the huge background of all the crap spewing out of that big fusion reactor close by, plus the smaller amount of stuff being produced by Jupiter. Even a megawatt or so won't have much effect by the time you reach Proxima Centauri.

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