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Black holes may bounce back as white holes


Posted on Tuesday, 22 July, 2014 | Comment icon 21 comments

Do black holes turn in to white holes ? Image Credit: NASA / Alain Riazuelo
Black holes may eventually turn in to their opposite and spew out everything that they ever swallowed.
One of the most mysterious and destructive phenomena in the known universe, black holes are typically formed when a sufficiently massive star collapses to the point at which its gravitational pull is so great that nothing, not even light itself, can escape.

Exactly what happens to the matter that is swallowed up by a black hole has been a topic of debate among scientists for years, but now a new theory has been proposed suggesting that black holes may actually end their lives by transforming in to their polar opposite - a white hole - leading to everything that they ever consumed being spewed back out in to space.

The theory even suggests that this transformation takes place almost immediately after the black hole is formed, but due to time dilation an external observer will still see it as a black hole for several billion years. If this idea turns out to be correct then some of the universe's earliest black holes may actually be ready to pop by now, producing bursts of high-energy cosmic rays with the potential to be mistaken for supernova explosions.

"Understanding how information escapes from a black hole is the key question for the quantum mechanics of black holes, and possibly for quantum gravity itself," said physicist Steven Giddings.

Source: Nature.com | Comments (21)

Tags: Black Hole

Recent comments on this story
Comment icon #12 Posted by Calibeliever on 22 July, 2014, 17:17
That made my head hurt, and it's not just the hangover this time.
Comment icon #13 Posted by questionmark on 22 July, 2014, 17:52
That made my head hurt, and it's not just the hangover this time. Don't worry, should it happen in our galaxy it will take ~27,000 years before we notice it did and a few more hangovers before we can kiss our butt goodbye.
Comment icon #14 Posted by Talion78 on 22 July, 2014, 21:05
I've always imagined a white hole is the other end of a black one.....if it goes in, it's got to come out somewhere......so the black is the mouth hole, and the white is the a*se hole.
Comment icon #15 Posted by shrooma on 23 July, 2014, 8:28
If "doh" can make it into the dictionary.... . ....along with the words 'selfie' and 'twerking'. meanwhile, the words 'optimism ' and 'future' have been removed.... .
Comment icon #16 Posted by Realm on 23 July, 2014, 11:03
It only makes sense. I've read where black holes spin at a very fast rate. After sucking all matter in, when it reaches some cataclysmic level, it reverses spewing it all out into a spiral galaxy. At least this is what I always believed. That would seem to be why most all galaxies are spiral and not fireworks explosions. All that matter going in would be expelled as new matter from its pre black hole state also, hence, new life. At least my beliefs.
Comment icon #17 Posted by keithisco on 23 July, 2014, 19:53
This is such an old idea - I was reading about this more than 20 years ago. It was once proposed that Seyfert galaxies were in fact "White Holes" - nothing, even light could enter them because the opposing force counteracted the photons moving at light speed. It was actually postulated that all matter entering a black hole was actually expulsed through the other end of an Einstein-Rosen bridge so you never actually had a mass for the Black Hole, it was simply a Temporal Conduit.
Comment icon #18 Posted by Hawkin on 24 July, 2014, 0:50
A black hole turns into a white hole and spews out everything? Sounds like it has a hangover.
Comment icon #19 Posted by Jaded1 on 26 July, 2014, 8:57
This is such an old idea - I was reading about this more than 20 years ago. It was once proposed that Seyfert galaxies were in fact "White Holes" - nothing, even light could enter them because the opposing force counteracted the photons moving at light speed. It was actually postulated that all matter entering a black hole was actually expulsed through the other end of an Einstein-Rosen bridge so you never actually had a mass for the Black Hole, it was simply a Temporal Conduit. I was wondering if you read this in a copy of "The Unexplained" from back in the day? I remember there being an arti... [More]
Comment icon #20 Posted by Sundew on 27 July, 2014, 17:36
A black hole turns into a white hole and spews out everything? Sounds like it has a hangover. If all your "food" was on fire, you might be tempted to spew at that!
Comment icon #21 Posted by Sinkholes on 30 July, 2014, 0:01
Black holes are a gateway between parallel universes. Different dimensions and possible a wormhole , time warp. We do not yet understand how to use them correctly. And UFO's / Aliens are actually Demons/Spirits entering our world from different dimensions of the universe. Do not try to make contact with them or listen to them. They can make you think something is right when its truly wrong. They have the technology and they can travel and form into almost anything. That's why they are always in different shapes. They have the ability to shift and change forms. And Sinkholes are just the beginn... [More]


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