Tuesday, 28 September, 2021

NEWS board

Marsquakes reveal planet anatomy

Seismic waves from quakes detected by NASA’s robotic InSight lander have helped scientists decipher the anatomy of Mars, including the first estimates of the size of its large liquid metal core, thickness of its crust, and nature of its mantle.

The findings disclosed on Thursday shed light on what had been a poorly understood internal structure of Earth’s smaller neighbor and provided a few surprises as well as confirmation that the Red Planet’s center is molten.

The InSight lander, which touched down in 2018 to begin the first mission to study the deep interior of Mars, has detected more than 700 marsquakes, most of modest strength. Waves generated by quakes.

Data from InSight’s seismometer instrument covering about three dozen marsquakes enabled the contours of the planet’s interior to come into focus.