"What the first photograph of a black Hole can reveal about space" PBS NewsHour 4/10/2019

Excerpt

SUMMARY:  A black hole is a cosmic abyss with gravity of such intensity that nothing, not even light, escapes it.  Now, for the first time, a team of astronomers has released an image of the space anomaly, which is created when a star collapses.  Professor Brian Greene of Columbia University and the World Science Festival provides context and talks to Judy Woodruff about this scientific breakthrough.