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As the Perseverance rover began to make tracks on the surface of Mars, a sensitive microphone it carries scored a first: the bangs, pings, and rattles of the robot’s six wheels as they rolled over Martian terrain.
“A lot of people, when they see the images, don’t appreciate that the wheels are metal,” said Vandi Verma, a senior engineer and rover driver at NASA’s Jet Propulsion Laboratory in Southern California. “When you’re driving with these wheels on rocks, it’s actually very noisy.”
More than 16 minutes of sounds from Perseverance’s 90-foot (27.3-meter) drive on March 7 were captured by Perseverance’s entry, descent, and landing (EDL) microphone, which remains operational on the rover after its historic touchdown on Feb. 18. The off-the-shelf microphone was added to the rover to help take the public along for the ride during touchdown, but mission members have been eager to hear the sounds from the surface, too.
“If I heard these sounds driving my car, I’d pull over and call for a tow,” said Dave Gruel, lead engineer for Mars 2020’s EDL Camera and Microphone subsystem. “But if you take a minute to consider what you’re hearing and where it was recorded, it makes perfect sense.”
originally posted by: gortex
a reply to: rickymouse
here on earth in a rocky sandy area
The fact that it isn't here on earth in a rocky sandy area is what makes it exciting , in the grand scale of things it's just sound waves but what those sound waves represent is what's important.
Kinda wish they'd put a little horn on Percy , just for effect.
Come fly with us. #MarsHelicopter is preparing to do something that's never been done: controlled, powered flight on another planet. Takeoff is now slated for no earlier than April 11, with data arriving on Earth on April 12