Question

How does a black hole give off light?​

Answer 1

Answer:

A black hole itself does not give off any light. That is why it is called black. However, matter that is near a black hole can give off light in response to the black hole's gravity. ... Since light travels in a straight line through straight spacetime, the curving of spacetime causes light to follow a curved path.

Answer 2

Answer:

As this article will show, due to vacuum fluctuations of quantum fields in the vicinity of its surface (the so-called event horizon), the black hole emits particles, such as photons (particles of light), neutrinos and others. ... This particular black hole is located at the center of the galaxy M87