The Black Hole Image: Philosophy of the Shadow

Date

Friday December 3, 2021
2:30 pm - 3:30 pm

Location

Zoom
Event Category

Peter L. Galison
Harvard University

Abstract

In thousands of atlases depicting the working objects of inquiry鈥攆rom bodies, clouds, plants, to crystals and insects-, physicians and natural philosophers worked out what counted as scientific objectivity.  This long-term history, with its various takes on what a reliable image should be, converged in the years-long struggle of the Event Horizon Telescope (EHT) to produce a picture of a black hole robust enough to make public.   On April 10, 2019, the team released the first image of a black hole, an image viewed within a very few days by more than a billion people.  This is a talk about how the EHT team of some 200 scientists came to judge the glowing, crescent-like ring as objective.

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