Marsquakes and other Mars sounds from NASA

Marsquakes and other Mars sounds from NASA

Marsquakes and other Mars sounds from NASA

Ever since more than 100 such events have been recorded and 21 of them are "strongly considered to be quakes", NASA says. The remainder could be marsquakes as well, but members of the InSight science team hasn't ruled out other causes.

As the short video plays, not only do you hear what quakes on Mars sound like, you also hear wind gusts, the robotic arm when it moves and shifts positions, and friction from parts within the seismometer.

NASA's InSight lander has been hanging out on Mars, and thanks to an incredibly sensitive seismometer, called the Seismic Experiment for Interior Structure (SEIS), it has been picking up some good, good, good, good vibrations.

These events occurred on May 22, 2019 (the 173rd Martian day, or sol, of the mission) and July 25, 2019 (Sol 235).

Sol 173 is about a magnitude 3.7.

The subtle tremors are below the human hearing range, so the space agency has processed them so they could be heard using headphones.

"Both events suggest that the Martian crust is like a mix of the Earth's crust and the Moon's".

On our planet, the crust is sealed when water fills it with minerals. "This enables sound waves to continue uninterrupted as they pass through old fractures". Mars' surface is similar to the Moon's and the seismic waves can long for a minute or so.

NASA's InSight lander has something interesting in store again.

"It has been exciting, especially in the beginning, hearing the first vibrations from the lander".

Unlike Earth's rambunctious surface (overpowered by the seismic noise of oceans and weather), the Red Planet is extremely quiet, allowis SEIS to pick up even the faintest rumbles from within.

There are several possible explanations for them, such as parts of the seismometer expanding and contracting, while a ticking sound could be due to heat loss, like when a vehicle engine is turned off and begins to cool.

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