Voyager 1 + 2

I would just like to mention how absolutely ridiculous the Voyager missions are, and how you can't comprehend how far they are from Earth. It's insane. Also, their chance of hitting anything bigger than a molecule in the next few hundred thousand years is approximately the smallest number you can think of out of the biggest number you can think of.

Also interesting is the Pioneer Plaque, which, do you seriously think anything that finds the plaque would be able to decipher it? Do you want to give a civilization that has the ability to discover the plaque (Thousands of years ahead of us) our exact location? Think about it.