Question

is a black hole a theory​

Answer 1

Answer:

Albert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity. ... After decades of black holes being known only as theoretical objects, the first physical black hole ever discovered was spotted in 1971.

Explanation:

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Answer 2

Explanation:

Albert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity. The term "black hole" was coined many years later in 1967 by American astronomer John Wheeler.