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NASA’s durable rover helps scientists discover slower-moving sound on Mars


Are from on Mars more than a year ago, NASA’s endurance rover used its microphone to record the Red Planet’s sounds, including and the humming of Ingenuity . And now those recordings have helped scientists That sound travels on Mars differently than it does on Earth.

In a study published Friday in the journal , the researchers say they determined that the Red Planet’s thin carbon dioxide atmosphere causes sound to travel more slowly on Mars, with the pitch of the sound further influencing its speed. On Earth, sound normally travels at 767 miles per hour. But on Mars, scientists determined that the low pitch moves at about 537 miles per hour, while the high pitch moves at about 559 miles per hour.

You’ve visited Mars, which means you’ll hear the high-pitched sounds a little earlier. “On Earth, sounds from an orchestra travel to you at the same speed, no matter how low or high they are. But imagine on Mars, if you were a little further from the stage, there would be a delay. large,” Sylvestre Maurice, the study’s lead author, told France’s .

Sound also carries a shorter distance due to the planet’s thin atmosphere. On Earth, they drop at about 213 feet, while on Mars, the sound begins to slow down after just 13 feet. That’s what can make it difficult to have a conversation with someone just 16 feet away from you. If you want to hear how things like birds and ocean waves sound on Mars, NASA has put together that gives us a sense of how much a Mars-like atmosphere will change our perception of the world.

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