Communicating with aliens might seem far off in the future, but sending an audio signal from Mars and back is one step in the right direction. Interplanetary communication has made history, as the first human voice has traveled through space and received on another planet. We have to thank Curiosity (NASA’s rover on Mars), for being able to receive Charles Bolden’s human voice and send it back to us, as voicemail. Charles Bolden read a speech out loud to NASA’s employees and to Mars. If you want to hear his voice, hit the source link below. Finally, I would like to add that the picture above is a lower resolution image of the martian hills sent back from NASA’s Curiosity’s rover.