DNA Explainer: Why sound recording of laser on Mars released by NASA is different The sound of the wind that has been recorded is very different from Earth due to the atmospheric pressure on the Red Planet. #NASAScience joins the discussion which will feature the first audio laser recordings from Mars (Image Source: Twitter/NASA) Share Updated: Mar 11, 2021, 04:41 PM IST National Aeronautics Space Administration or NASA's Jet Propulsion Laboratory (JPL) released two historic audio recordings from the surface of Mars on Wednesday. Both recordings were taken using the rover's SuperCam, which is a rock-vaporizing instrument mounted on the 'head' of the rover's mast that will help scientists hunt for fossils on the red planet.