LESIA – Paris Observatory

LESIA is one of the six scientific departments of the Paris Observatory, with affiliations to PSL Research University; the National Center for Scientific Research (CNRS); Sorbonne University and University Paris-Diderot. LESIA specializes in instrumentation for astronomy, space and ground-based telescopes and radio astronomy. As one of the largest French laboratories for astrophysics, LESIA contributes to instruments for the ESA Solar Orbiter mission, NASA/MSL 2020 and many space missions (Bepi Colombo, Plato, Ariel, etc.). It has contributed to many other high-profile space missions over the last 50 years for the CNES, and other agencies (NASA, JAXA, ESA, IKI). It is also involved in the instrumentation of the future Extremely Large Telescope of the European Southern Observatory (ESO). LESIA houses a large Assembly Integration and Test Facility in a clean room designed for testing instruments in space or Martian conditions.
http://lesia.obspm.fr and http://observatoiredeparis.psl.eu