• The Voyager 1 spacecraft was launched in 1977, is over 15 billion miles from earth, still sending information back to Earth.
  • Shortwave radio stations on one continent transmit programs that are received in places halfway around the world.
  • East coast radio stations broadcasting on the AM band and be heard in the Rocky Mountains. 

Radio signals never stop traveling, they just fade away. This session takes a look at the ways radio signals travel in our environment and in space. We also look at the fun ways to pick up some of these signals and why certain radio signals travel better than others.

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