The SAINT-EX research group uses ground- and space-based observatories to search and characterise planets orbiting other stars than our sun. Our team focuses on 1) the detection of rocky exoplanets, 2) the remote sensing of planetary atmospheres/surfaces and 3) statistical analyses to understand exoplanet properties at the individual and population levels. The SAINT-EX group is also leading the development of the eponymous observatory designed to discover planets similar to the Earth orbiting in the habitable zone of their stars.
New insights in TRAPPIST-1 planet interiors
A new paper led by members of the SAINT-EX group is providing the most precise calculations so far of the masses of the seven planets around the star TRAPPIST-1. From this, new findings are emerging about their density and composition: All TRAPPIST-1 planets consist primarily of rock and contain up to five percent water. This is a decisive step for determining the habitability of these planets.