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Session organized in partnership with the French Astronomical Society. Launched on December 25, 2021 by the Ariane 5 rocket, the James Webb space telescope reached its orbit on January 24, 2022, around the Lagrange point "L2" located 1.5 million kilometers from Earth. Its mission is to identify the first stars, planets and galaxies and observe their evolution, measure the physical and chemical characteristics of the Solar System and other planetary systems, and search for the components essential to the appearance of life in the atmosphere of exoplanets. A great opportunity to look back on the incredible adventure of telescopic space exploration! Telescopes, from Earth to space With David Elbaz, astrophysicist, director of the Cosmology and Evolution of Galaxies laboratory, CEA/CNRS/Université Paris-Diderot. Saclay The James Webb saga and its missions With Philippe Laudet, engineer and astrophysicist, head of the Astronomy and Astrophysics programs, CNES (Toulouse); Pierre-Olivier Lagage, astrophysicist, research director at the Department of Astrophysics, CEA (Saclay); Lucie Leboulleux, astrophysicist, researcher at the Institute of Planetology and Astrophysics, CNRS (Grenoble) and Emilie Habart, astrophysicist, lecturer at the Institute of Space Astrophysics, CNRS (Orsay). Future space observatories With Olivier La Marle, Head of the Sciences of the Universe program at CNES. Moderated by: Gilles Dawidowicz, Vice-president of the French Astronomical Society. SAF partnership, For science. Saturday, June 18, 2022 - Credits: EPPDCSI 2022