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Could white holes actually exist? (www.space.com)

submitted 2 years ago by readbeanicecream@kbin.social to c/space@kbin.social

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White holes are mathematically possible, according to general relativity. But does that mean they're actually out there?

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[–] Sodis@feddit.de 0 points 2 years ago (1 children)

Black Holes do not have infinite mass. We pretty much know how heavy the are, because we can measure their gravitational influence on surrounding matter. They just have enough gravity, that light can't escape their gravitational pull. Infinite mass would also break a lot of fundamental physic laws, like conversation of energy.

3/infinity is 0. You probably meant infinity/3 is infinity.

[–] sparseMatrix@kbin.social 1 points 2 years ago* (last edited 2 years ago)

@Sodis

@readbeanicecream @exscape

According to my understanding, beyond the event horizon, gravity is infinite.

I am not a physicist - I'm a guy who read Prof. Hawking. Given the nature of llight vis a vis observation, inside the singularity, mass and gravity approach infinity.

Mass bends spacetime into gravity. Gravity bends light. Infinite mass > infinite gravity > stops light == singularity.

Note that things happening near the singularity are not the same as things that happen beyond the event horizon.