Fast Infrared Exoplanet Spectroscopy Survey Explorer

Fast Infrared Exoplanet Spectroscopy Survey Explorer (FINESSE) is a proposed NASA mission and space observatory in the explorer program consisting of a space telescope focused on studying the atmospheres of over 200 planets outside the Solar System with the goal of gaining understanding of the processes responsible for their composition, and how the Solar System fits into the larger family of planets.

The principal investigator is Mark Swain of the Jet Propulsion Laboratory in Pasadena, California. If chosen to go forward, FINESSE would launch in February 2017. The mission would last two years.