Processes in the upper atmospheres, ionospheres and magnetospheres of terrestrial planets and their interactions with the solar wind are of great importance for our understanding of atmospheric losses to space and evolution of climates. Spacecraft observations at Mars, Venus, Earth and Titan, as well as Moon, Mercury and other atmosphere-less bodies provided a wealth of data that allow characterization of  the processes in all their diversity and in a comparative manner. The wide range of boundary conditions found in the Solar System provides tremendous input into understanding evolution of the atmospheres of exoplanets as driven by aeronomical processes. 

The symposium will address the processes in the upper atmospheres and plasma envelopes of all terrestrial planets, including escape and atmospheric evolution. 
The experimental results from MAVEN, Mars Express, Venus Express, Pioneer-Venus, Cluster, Swarm, Messenger, Cassini-Huygens and other space missions will form the basis of the symposium programme. They will be complemented by results from theoretical investigations and numerical modelling. 

The symposium will be organized with 5 days of sessions that will include invited summary talks, oral presentations, poster sessions and discussions.