Sturm Memorial Lecture

In memory of Kenneth E. Sturm, a Wesleyan alumnus, this annual event is held in the spring and is open to the public. It features a presentation from an astronomer that is outstanding in their field and able to communicate the excitement of science to a lay audience. The event is free and open to anyone.

Speaker: Dr. Sheperd Doeleman, Center for Astrophysics | Harvard & Smithsonian and the Founding Director of the Event Horizon Telescope (EHT)

Black holes are cosmic objects so small and dense, that nothing, not even light can escape their gravitational pull. Until recently, no one had ever seen what a black hole actually looked like. Einstein's theories predict that a distant observer should see a ring of light encircling the black hole, which forms when radiation emitted by infalling hot gas is lensed by the extreme gravity near the event horizon. The Event Horizon Telescope (EHT) is a global array of radio dishes, linked together by a network of atomic clocks to form an Earth-sized virtual telescope that can resolve the nearest supermassive black holes where this ring feature may be measured. On April 10th, 2019, the EHT project reported success: we have imaged a black hole, and have seen the predicted strong gravitational lensing that confirms the theory of General Relativity at the boundary of a black hole. In 2022, our team again saw this phenomenon towards the supermassive black hole at the center of our Milky Way galaxy.  This talk will cover the history of black holes, how the EHT was developed and what we've learned so far (and hope to learn) about these mysterious objects.

Dr. Sheperd S. Doeleman is an Astrophysicist at the Center for Astrophysics | Harvard & Smithsonian and the Founding Director of the Event Horizon Telescope (EHT), a synchronized global array of radio observatories designed to examine the nature of black holes. Shep Doeleman is also a Harvard Senior Research Fellow and a Project Co-Leader of Harvard’s recently established Black Hole Initiative (BHI). The BHI is a first-of-its-kind interdisciplinary program at the University that brings together the disciplines of Astronomy, Physics, Mathematics, Philosophy, and History of Science to define and establish black hole science as a new field of study.

When: Tuesday, April 22, 2025

Where: Ring Family Performing Arts Hall, Wesleyan University

Reception and telescope viewing at the Van Vleck Observatory to follow the lecture.

The Sturm Memorial Lecture is sponsored by the Astronomy Department, the Allbritton Center for the Study of Public Life, and NASA Connecticut Space Grant Consortium, and the Wintman Family Endowed Lecture Fund.

Click here to download a printable flyer for the 2025 Sturm Lecture.

Past Speakers