Avant-propos : L’attente froideL’Europe du Nord, jusqu’au nord de l’Italie, est actuellement en proie à une vague de froid glacial (sans doute le résultat du réchauffement climatique). En conséquence, les observateurs s’attendent à ce que l’offensive hivernale russe en Ukraine commence d’autant plus tôt, mais personne ne sait quand. Ce …

Hydrogen is a key building block of the cosmos Whether stripped down to its charged core or piled into a molecule, the nature of its presence can tell you a lot about the Universe’s features on the largest of scales. For that reason, astronomers are very interested in detecting signals …

Lawyers for Russian oligarch Roman Abramovich argue he should not be sanctioned because his ties to the Kremlin are weak… …but new documents reveal he secretly had a years-long partnership with the Russian government in a forestry venture. Russian billionaire Roman Abramovich was a direct partner of the Russian government …