The final results of the MICROSCOPE mission reach record precision The MICROSCOPE mission has just confirmed the principle of equivalence with a record precision of a few 10-15. It thus proves that bodies fall in vacuum with the same acceleration regardless...
SUPERFLUID HELIUM AND NEGATIVE PRESSURES Low temperature liquid helium-4 is a model material for condensed matter physics for two reasons. First, atomic interactions are weak and quantum effects play an important role on the macroscopic scale. Secondly,...
Enigmatic black holes revealed by gravitational waves This is the biggest catch to date for the LIGO and Virgo gravitational wave detectors: a black hole with the mass of 142 suns, resulting from the fusion of two black holes of 85 and 65 times the mass of Sun. The...
Fundamental constants: the molecular hydrogen ion joins the play The HD+ molecule, composed of a proton, a deuteron and an electron, is along with its isotopes such as H2+ or D2+, the simplest molecule. As such, it is a valuable tool to test our understanding of...
