Question

What's big bang theory and black hole?​

Answer 1

Answer:

The first clear difference is that the Big Bang singularity of the FRW models lies in the past of all events in the universe, whereas the singularity of a black hole lies in the future. The Big Bang is therefore more like a "white hole": the time-reversed version of a black hole.

Answer 2

QUESTION:

What's big bang theory and black hole?

ANSWER:

Big Bang theory

The Big Bang Theory is the leading explanation about how the universe began. ... At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

Black Hole

A black hole is a region of spacetime where gravity is so strong that nothing—no particles or even electromagnetic radiation such as light—can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform spacetime to form a black hole

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