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From outer space to the classroom.

Are you a student or a teacher interested in learning more about black holes? We are proud to offer the opportunity for your class to meet with one of our BHI Fellows or Graduate Students, via Zoom, for an age appropriate presentation and Q&A session. Sessions run September until April.
Please fill out this form and we will be in contact.

Angelo Ricarte


Dr. Angelo Ricarte is an expert in the study of black holes at the centers of galaxies: how they eat gas, how they affect their host galaxies, and even how we can take pictures of them!  He is part of the Event Horizon Telescope collaboration, which produces images of supermassive black holes.  When he isn’t setting up simulations on supercomputers, he enjoys playing Dungeons and Dragons.

Dominic Chang

Graduate Student

Dominic Chang has expertise in black hole phenomenology. Dominic has dedicated his life to studying the observational signatures of black holes. His interests lie in the intersection of black hole physics along with other topics such as thermodynamics, quantum mechanics and hydrodynamics. He is a member of the Event Horizon Telescope (EHT) collaboration and the Black Hole Initiative (BHI). In his free time he likes to play and sing along to his guitar.

Hyerin Cho

Graduate Student

Hyerin Cho is a graduate student at Harvard Astronomy who is deciphering how the intricate small-scale dynamics of black holes influence the vast scales of galaxies. Hyerin runs simulations that uses the theory of general relativity for unraveling the secrets of black holes. Outside of research, she is a yogi and a dancer.

Matthew Heydeman


Dr. Matthew Heydeman is a theoretical physicist at the BHI and Harvard University. Einstein’s theory of spacetime describes large objects as well as the universe as a whole, but this theory is incompatible with laws which describe small objects such as fundamental particles. Understanding how black holes can help to resolve this incompatibility is the focus of Matthew’s research, and he has studied various miraculous and paradoxical aspects of quantum black holes.

Sara Issaoun

Associate Fellow

Dr. Sara Issaoun is an observational astronomer and a member of the Event Horizon Telescope. She uses global networks of radio-telescopes to image and study the immediate surroundings of supermassive black holes to understand how they spin, feed, flare, and launch powerful jets of plasma. When she’s not working, Sara enjoys running a travel guide blog and listening to music by the Korean group BTS.