Lia Medeiros, Visitor in the Institute for Advanced Study's School of Natural Sciences (2023–24), describes how she created a machine learning algorithm to produce new images of the black hole at the center of our galaxy, and how such images can be used to test Albert Einstein's theory of gravity.

The unparalleled resolution of the Event Horizon Telescope (EHT) images of the black holes at the center of the M87 galaxy and at the center of our galaxy, called Sagittarius A* (Sgr A*), allows us to test assumptions, predictions, and alternatives to Einstein’s theory of gravity. 

Lia Medeiros, a Member and astrophysics postdoctoral fellow in the School of Natural Sciences, is interested in using astronomical objects and phenomena to test fundamental theories of physics. She is a winner of the 2020 Breakthrough Prize in...