M Thomas Apple Author Page

…while light cannot escape a black hole, its extreme gravity warps space around it, which allows light to “echo,” bending around the back of the object. Thanks to this strange phenomenon, astronomers have, for the first time, observed the light from behind a black hole.

https://www.nbcnews.com/science/space/einstein-right-researchers-see-light-echo-black-hole-rcna1553

Einstein has been proven right. Again.