Question

(1) What is a black hole

(2) And who discovered the black hole

Answer 1

Answer:

1)A black hole is a region of spacetime exhibiting such strong gravitational effects that nothing—not even particles and electromagnetic radiation such as light—can escape from inside it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole.

2) Karl Schwarzschild

Explanation:

Answer 2

Black holes are those stars which are about to finish these stars when loose their brightness they became completely black and we called it black hole.. the first theory about it was given by Stephen hawkings.. and the first clearly visible black hole hole was discovered by NASA on 10 April 2019 recently.if u want more information then u can comment me for more details.