TechTalk Trivia: What 2 types of propulsion was Mariner 10 was the first spacecraft to use?

Image via WikipediaYet more damning evidence of my radio ineptitude courtesy of TechTalk on WRLR Chicago. This time around, I divulge what two types of spacecraft propulsion that Mariner 10 was the first spacecraft in history to use. If that sounds like your cup of tea, I promise the info survives my bludgeoning attempts at being entertaining.

More importantly, Mike Kastler explains how to use the Internet to up the efficiency and honesty of your charitable donations. Listen for that service, if nothing else. Skip over my trivia nonsense, if necessary.