Recent years have seen a considerable number of discoveries about the Universe. The Hubble and James Webb telescopes are now revealing objects that are as fabulous as they are mysterious. In this talk, Yann Mambrini, Director of Research at the CNRS, takes you on a journey to the very edge of the Universe, where you will encounter a bestiary of supernovae, quasars, super-massive black holes, habitable planets and cosmic rays. You will be presented with the very latest results and photos taken by the leading research teams. And maybe we'll be able to answer the question: are we really alone in the Universe?

Ever since man first became aware of his existence, time has been one of his primary obsessions. While our watches and clocks remind us every day of this permanent and inescapable flow of time with what is now atomic precision, it wasn't always so. In this lecture, we retrace the epic of humanity's quest to master time and its measurement. From the clepsydras of Mesopotamia to atomic clocks, via Egyptian sundials and the discovery of quartz, mankind has drawn on its greatest geniuses - mathematicians, physicists, craftsmen and astronomers - to enslave this time that will always elude us.

Ever since mankind has been pondering its destiny and origins, it has never been so close to a unified understanding of the Universe, from the infinitely small to the infinitely large. The recent discoveries of the acceleration of the expansion of the Universe, the Higgs boson, gravitational waves and black holes now give us a global vision of the history of our Universe, from the Big Bang to the present day. In this talk, which is aimed at a very broad audience and requires no prior scientific knowledge, Yann Mambrini will look back at the key stages that led to these discoveries, crossing the path of their discoverers, from Newton to Einstein via Planck. The most recent results will be presented, allowing us to delve into the twists and turns and paradoxes of relativity and quantum physics, on an exciting journey through time that will take us from our origins to our final destiny.