You'd never expect a planet to create a humming noise, but that's exactly what scientists found on Mars. Among the uneven sequence of Martian earthquake drums and beats, there is a sound that adds up to the planet's many mysteries.
It's been 5 years since NASA's InSight lander has safely gotten to the surface of Mars, landing in a flat area close to the planet's equator. It has been gathering a whole bunch of unique information, getting more data about the red planet that everyone ever thought possible. The lander's extremely sensitive seismometer has picked up all kinds of data, painting a unique picture of Mars' geological activity.
Unlike Earth's humming sounds that originate from the planets oceans and waves crashing against the shores, Mars has a 'melody' that sounds much higher compared to that of our planet. At first, scientists thought it was connected with the strong winds on the planet's surface, but that wasn't the case. The humming high-pitched sound seems to get a little bit stronger as marsquakes roar through the planet's surface, but seismologists believe the two may have different origins.
If the frequency of the marsquake somehow matches the source that creates the humming sound, it may amplify the effect, thus, making the humming even louder than it actually is. Some seismologists believe that the mysterious sound may be somehow connected to the basin where the InSight lander is located and the sands and stone that comprise it.
Geophysicists still have no idea what's causing the curious humming effect, but they are hoping that more data from the InSight lander will shed some light as to its origin.