NASA's Perseverance rover has for the first time captured the low-pitched sounds from another spacecraft on another planet. The low-pitched sound was recorded during the Ingenuity helicopter's fourth flight on April 30. The mission's engineers weren't sure they would pick up the flight sound at all, given that Perseverance was parked 262 feet (80 meters) away from the takeoff and landing spot. Sounds emitted on Mars travel slower than they do on Earth, because of cold temperatures, which average -81 degrees Fahrenheit (-63 degrees Celsius) on the surface. The atmosphere of Mars, made up of 96 percent carbon dioxide, tends to absorb higher-pitched sounds, so only lower-pitched sounds can travel long distances.

Source: dna May 08, 2021 09:56 UTC