The ubiquitous question of scientists (and of every human being) is the existence of a planet similar to our own, allowing the development of life. Scientists have introduced the concept of habitability to characterize the conditions under which a carbon-based life form could appear, survive and evolve.

This concept is based on constraints from different disciplines: from insolation, internal heat, atmosphere, the characteristic periods necessary for the start of the life process, to the shape of the orbit and its stability (dynamics), which also depends on its rotation (spin), the presence of resonances between active frequencies and must include possible dissipations (tides, friction).