https://sites.astro.caltech.edu/~srk/
A great professor
https://www.ted.com/talks/andrea_ghez_the_hunt_for_a_supermassive_black_hole
Nobel Prize 2020
https://www.nobelprize.org/prizes/physics/2020/ghez/facts/
https://people.ast.cam.ac.uk/~nmadhu/Nikku_Madhusudhan/Home.html
https://www.annualreviews.org/doi/abs/10.1146/annurev-astro-081817-051846