Eliot Quataert - Princeton University Observations with the GRAVITY interferometer on the VLT and the Event Horizon Telescope (EHT) are revealing the structure and dynamics of plasma near the event horizon of supermassive black holes. In this talk I will describe theoretical models of black hole accretion that are critical for interpreting these remarkable observational […]

Pascal Marichalar - CNRS-IRIS, Aubervilliers This historical study is part of a broader inquiry about the status of the land on which astronomical observatories are built. In the aftermath of Hawai‘i’s 1959 accession to US statehood, the dormant volcano known as Mauna Kea was suddenly heralded as being « probably the best site in the world […]