To Space and Beyond?

When I was in my twenties and early thirties I worked at AM and FM radio stations as well as one TV station. I was audio in all: Audio Library Intern, DJ, Audio Technician and Production Director in that order. It was a great time and age to be in the business. On air DJ, writing and producing commercials, on location remotes, running audio for news, a children's show, live sports events...it was at times stressful, but also a lot fun. I met and worked with some very interesting people. I can even play the Degrees of Keven Bacon game and only be one degree away: Met John Goodman when he appeared on a telethon in Springfield, put microphone on him. (REALLY tall man!) He was in Death Sentence with Mr. Bacon.
 
One thing I remembered hearing that blew my mind was that, especially with AM radio waves, they would travel into space and go on forever. Lately scientist have said it's not true, that they might reach Mars... then another says Uranus before weakening...and then I've heard that yes they can go further but not to Andromeda because they spread out like a ripple in a pond from a pebble as they travel. I've decided to ignore them all until they can agree. The reason is I have always loved the idea that my voice is traveling through space at the speed of light! (since it's a signal and not a real sound which would be the speed of sound) It's just cool! The idea that my voice is right now around 27 light years, or 158,722,885,075,957.44 miles from earth! I figure until there's a human listening at some great distance from this big blue marble who can then say "Yep...no signal" I will continue to believe what I want to. It doesn't hurt anyone for me to stick with the notion that my voice, in the form of AM radio waves, is traveling where I can never go. Anyway, scientists say WE couldn't listen to the AM signals. But WE don't have giant brains like aliens seem to have, at least that's what the pictures of the aliens who abduct people have, and THEY don't always have ears, so they need louder and stronger radio signal reader thing-a-ma-jigs to make up for their lack of lobes on the sides of their heads...so there! Ha! Ha! I win! WOO! HOO!