Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity.
Black hole, Definition, Formation, Types, Pictures, & Facts
Black hole, Definition, Formation, Types, Pictures, & Facts
What Is A Singularity? - Universe Today
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Black hole, Definition, Formation, Types, Pictures, & Facts
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Black Holes, Definition, Facts, Formation, Types
Black hole - Wikipedia