Keyword Analysis & Research: black hole

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Are black holes really black?

Black holes are not really holes at all. They are the opposite of empty! Black holes have the most matter stuffed into the least space of any objects in the universe.

What is the definition of a black hole?

2) In physics and astronomy, a black hole is a region in time and space within which gravity is so strong that nothing can escape, not even electromagnetic radiation such as visible light. Black holes are thought to surround certain celestial objects. The idea of a black hole (if not the term itself) is not new.

What is the black hole theory?

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.

What is the explanation of a black hole?

black hole. noun. 1 : a celestial object that has a gravitational field so strong that light cannot escape it and that is believed to be created especially in the collapse of a very massive star. 2 : something resembling a black hole: such as.

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