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Colloquia Archive 2021


Black Holes: Critical Behavior in the Sky—Andrew STROMINGER

The last decade has witnessed dramatic progress in observational black hole astronomy. At the same time, exciting new insights - but not a solution - have emerged concerning the infamous quantum black ...


Big vs Small: What Is the Mass of the First Stars?—Volker Bromm; Anna Frebel; Stefania Salvadori .

Light from stars is one of the main tools that aids in the exploration of the Universe through cosmic time. To do so a good understanding of the properties of ...


The First Generation of Stars and Blackholes in the Universe—Naoki YOSHIDA

Modern sky surveys using large ground-based and space-borne telescopes have discovered distant stars, galaxies, and supernovae. All the rich structure in the Universe developed through gravitational amplification of primeval density ...