Humans have been exploring Mars since NASA’s Viking 1 lander touched down on the red planet on July 20, 1976. Since that time, technology has improved drastically, enabling landers to do all sorts of things, including gathering and testing soil samples, listening to Mars through microphones, and launching a helicopter UAV into the Martian skies. Granted, people haven’t made the journey just yet, but a mission like this is planned, so it’s only a matter of time. With each
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