Humans just tried to contact intelligent aliens. On Oct. 16, 17, and 18 a team of scientists sent a message to aliens. They sent the message via radio waves and transmitted it 9 different times. This helps ensure that all the information reaches its destination What's in the message?Thirty-three musical pieces, each 10 seconds long, a tutorial on how humans keep time, and when we will be listening for a response.The message is headed for a nearby exoplanet named GJ 273b.