READ THE DESCRIPTION. OK, here is a common misconception over the comments :) "Space is vacuum, sound can't travel in vacuum" You guys are right, but you know that you can convert an energy to another energy, right? So, these sounds you are hearing are radio wave energies collected by the satellites or unmanned spacecrafts which scientists sent and are converted to sound energies which are the sounds you are hearing. Thanks for reading this. :) Are you like me? You love space right? Make sure to visit solarviews.com It is one of the greatest space websites in my opinion and has amazing pictures of the solar system. make sure to give it a visit :) All credits go to Calvin J. Hamilton for that amazing website.