Look, Up in the Sky—a Black Hole!

By: Ray Jayawardhana,  in The Wall Street Journal
Tue, 04/09/2019

Ray Jayawardhana, Harold Tanner Dean of the College of Arts and Sciences and professor of astronomy in the College of Arts and Sciences, writes in this Wall Street Journal op-ed that astronomers recently revealed the black hole's "shadow" for the first time. 

"Theorists realized that while no one can see a black hole directly, its 'shadow' ought to be visible against the fog of radiation in its immediate vicinity," Jayawardhana writes. "The shadow results from the combined effects of extreme bending and disappearance of light near and beyond the event horizon. Researchers calculated the shadow would be large enough to detect with an Earth-size network of radio telescopes. 

Read the entire Wall Street Journal op-ed here