White holes: What we know about black holes' neglected twins

The workings of the Universe.
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fred8615
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Joined: October 12th, 2009, 12:29 pm
Location: Sorrento, LA

White holes: What we know about black holes' neglected twins

Post by fred8615 »

White holes are theoretical cosmic regions that function in the opposite way to black holes. Just as nothing can escape a black hole, nothing can enter a white hole.

White holes were long thought to be a figment of general relativity born from the same equations as their collapsed star brethren, black holes. More recently, however, some theorists have been asking whether these twin vortices of spacetime may be two sides of the same coin.

To a spaceship crew watching from afar, a white hole looks exactly like a black hole. It has mass. It might spin. A ring of dust and gas could gather around the event horizon — the bubble boundary separating the object from the rest of the universe. But if they kept watching, the crew might witness an event impossible for a black hole — a belch. "It's only in the moment when things come out that you can say, 'ah, this is a white hole,'" said Carlo Rovelli, a theoretical physicist at the Centre de Physique Théorique in France.

Read more: https://www.space.com/white-holes.html
Frederick J. Barnett
"Someone's got to take the responsibility if the job's going to get done!! Do you think that's easy?!" Gregory Peck - The Guns Of Navarone
Johnmo89
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Joined: February 25th, 2022, 3:55 am

Re: White holes: What we know about black holes' neglected twins

Post by Johnmo89 »

Black holes cannot be seen, they are indicated by various indirect data. White holes with opposite properties exist only in theory. Scientists admit that they could die in the process of the development of the Universe or get lost among dark matter, becoming inaccessible to observation.
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