- Investigation of the structure  and chemical composition of the atmosphere, including isotopic ratio of the light and noble gases;

- Clouds, structure, composition, chemistry

- Study of the surface composition, mineralogy, geochemistry, interaction between the surface and atmosphere, search for volcanic and seismic activity;

- Study of the dynamics and nature of superrotation, radiative balance and nature of the enormous greenhouse effect;

-Investigation of the upper atmosphere, ionosphere, electrical activity, magnetosphere, escape rate 

The nature of the greenhouse effect	Origin and evolution of the atmosphere	The surface and its interaction with the atmosphere