These are the five farthest space probes that freckle our solar system (that are still active, for now!). Geek out with me further by becoming an official Space Friend on http://patreon.com/arielwaldman
You can also team up with me here...
TWITTER // http://twitter.com/arielwaldman
INSTAGRAM // http://instagram.com/arielwaldman
...and you can grab my book about funny astronaut stories here: http://amzn.to/1MFUEVC
Always Be Exploring!
