InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) is a NASA Discovery Program mission that will place a single geophysical lander on Mars to study its deep interior in the core, mantle and crust.
Scientists are trying to understand how all of the rocky planets, such as Earth, were formed and later evolved over time. Mars still has remaining evidence about its rocky planet early development. Earth’s evidence was erased by its internal movements which Mars did not have.
The Red Planet Interior
Since scientists and geologists know that a planet’s interior retains a signature of its beginnings and evolution, the information inside will provide a signature of the early differentiation processes. The measurements received from these instruments will reveal information about processes that occurred during the initial growth of the planet, the formation and differentiation of its core, crust, and mantle, and subsequent evolution of its interior.