Progress in understanding of atmospheric evolution on terrestrial planets and explosive\u00a0development of exoplanetary science, suggest to reassess and generalize our knowledge from\u00a0the Solar system to multiple worlds beyond. Analysing the atmosphere of an exoplanet is the\u00a0only possible means to assess its habitability, because so far we have no other access to\u00a0biosignatures, for instance at the surface. The goal of the present Workshop is to bring together\u00a0planetologists, experts on aeronomy and escape, climatologists, and astronomers to look for\u00a0commonalities among atmospheres of the Solar system, the only example we know reasonably\u00a0well, and the atmospheres of planets around distant stars, which can be assessed only\u00a0indirectly. The WS will summarise our knowledge of the atmospheres and their evolution, based\u00a0on ground\/space-based observations and modelling, and will address future space missions to\u00a0characterize exoplanets\u2019 atmospheres and possibly find signatures of life there.<\/p>\n
Several space missions have recently brought new insights about the atmospheres of the Solar\u00a0system planets, such as Venus Express and Akatsuki on Venus, dedicated escape and\u00a0atmosphere missions on Mars, MAVEN and ExoMars TGO, New Horizons and JUNO on outer\u00a0planets. The exoplanet missions, flying and planned (Kepler, TESS), explore the transit method\u00a0with advanced spectroscopic capabilities for atmospheres. This means that for a long time the\u00a0focus will remain on atmospheres characterisation.<\/p>\n
During the Workshop we aim first to address the diversity of observed planets, draw analogies\u00a0to the Solar system planets, and review how an exoplanetary atmosphere can be constrained\u00a0by observations. In the second part of the Workshop, the variety of processes bringing an\u00a0atmosphere from its formation to known end members will be addressed, including\u00a0protoatmospheres, early evolution, geochemical cycles, and escape. Present-day processes in\u00a0the atmospheres of Solar system (chemistry, circulation) and current understanding of the\u00a0atmospheres at the planets on other stars, including special cases, will be discussed. The\u00a0Workshop will conclude with future space missions, which are important for understanding of\u00a0exoplanetary atmospheres.<\/p>\n","protected":false},"excerpt":{"rendered":"
Progress in understanding of atmospheric evolution on terrestrial planets and explosive\u00a0development of exoplanetary science, suggest to reassess and generalize our knowledge from\u00a0the Solar system to multiple worlds beyond. Analysing the atmosphere of an exoplanet is the\u00a0only possible means to assess … Continue reading