Mission Overview

This webpage is under construction


ARIEL is the first space mission dedicated to measuring the chemical composition and thermal structures of a large well constructed sample of transiting and eclipsing exoplanets, enabling planetary science far beyond the boundaries of the Solar System.

All aspects of the ARIEL mission as selected in 2018 are described in detail in the Yellow Book, the phase A study is described in 'The Phase A study of the ESA M4 mission candidate ARIEL', by Puig, L., Pilbratt, G., Heske, A. et al. Exp. Astron. 46:211, 2018 - https://doi.org/10.1007/s10686-018-9604-3 (open access).

The ARIEL mission as proposed for adoption in 2020 will be an updated and consolidated version the mission as selected. It will be described in detail in the Red Book, which is anticipated to become available in the summer 2020 timeframe (see further on the Documents and Articles webpage).

Check out the presentations from the ARIEL: Science, Mission & Community 2020 conference held on 14-16 January 2020 in ESA/ESTEC, Noordwijk, The Netherlands to learn the latest on all aspects of the ARIEL mission.