The ARIEL mission from the European Space Agency (ESA) is a space telescope that can detect which atoms and molecules are present in the atmosphere of an exoplanet, looking to identify their temperatures and chemical processes. The mission will include a NASA instrument, CASE (the Contribution to ARIEL Spectroscopy of Exoplanets), which will observe clouds and hazes, and provide a more comprehensive picture of the exoplanet atmospheres ARIEL observes.
