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The Sounds from Mars

posted by Jason Kottke   Oct 19, 2021

For the last nine months, NASA’s Perseverance rover has been rolling around on Mars taking photos and doing science. It’s also been recording audio of its environment with a pair of microphones and in this video, a pair of NASA scientists share some of those recordings and what we might learn about Mars from them.

This is one of my absolute favorite sounds. This is the sound of a helicopter flying on Mars. We used this sound to actually understand the propagation of sound in general through the Martian atmosphere, and it turns out that we were totally wrong with our models. The Martian atmosphere can propagate sound a lot further than we thought it could.

And surprisingly for me, that’s my friend Nina in the video! (We eclipse-chased together in 2017.) I knew she was working on the rovers but didn’t know she was going to pop up in this video I found on Twitter this morning. Fun!