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One hundred years after the death of the French astronomer and populariser of science Camille Flammarion, the CNRS physicist Jean-Philippe Uzan follows in the footsteps of his predecessor’s celebrated book Popular Astronomy, providing us with an accessible account of a century of scientific achievements that have dramatically changed our understanding of the Universe.

In the face of the climate emergency, techniques for removing CO₂ dissolved in seawater have raised some hopes and much concern. How to proceed? What rules should be established? Who should be in charge? The CNRS biogeochemist Olivier Sulpis, who is tasked with assessing these methods, provides an insight.

Imagining and preparing for the future in order to guide research and public policy is the very purpose of foresight. A perilous exercise, scientists point out. And one that requires dialogue between disciplines, along with solid models accounting for multiple uncertainties.