Originally Posted by $ilent
The Voyager has a golden disc fitted to it; the discs carry a record of Earth's location along with sounds and images that portray the diversity of life on Earth.
You know...just in case.
Yeah, I've always felt a little nervous about that...it is basically the info a militaristic alien race needs to find us and learn the best/easiest ways to kill us or what we are capable of if used as slaves and what resources our planet might hold.
Originally Posted by Al plants Corn
Seems crazy to me that those radio waves don't dissipate over that long of a distance
They have something they call the Deep Space Network. They basically have a bunch of dishes pointed directly at voyager...and voyager has a dish pointed directly at Earth. You'd actually be surprised at how clear the signal is. You have to remember, radio waves are dissipated the most by obstructions and there is 11 billion km of near vacuum between the two dishes and the frequency they use is the one that is least effected by earth's atmosphere.
Radio telescopes pick up radio waves from stars millions of light years away. Granted that is a much more powerful transmitter, but they've been heading out in a straight line for a really long time and are still together enough to learn a lot about the star.Edited by Vagrant Storm - 9/12/13 at 1:38pm