Everything in the universe may eventually evaporate into nothing
In short: Black holes are famous for their ability to consume everything, but they too have an expiration date. New calculations suggest that this process of evaporation isn't just a cosmic anomaly for massive voids; it might be the ultimate fate of every single object in existence.
For decades, the concept of black hole evaporation was tied specifically to extreme environments. In the 1970s, physicist Stephen Hawking began investigating what happens to particles near an event horizon—the boundary where gravity becomes so intense that nothing can escape. He proposed that these objects don't just grow forever; they emit a special kind of radiation that causes them to shrink and eventually disappear entirely.
The mechanism behind this involves the collision of two different scales of physics: Einstein's theory of relativity, which governs the behavior of massive objects like stars, and quantum mechanics, which dictates the rules for subatomic particles. In the intense gravitational fields near a black hole, these two frameworks rub up against one another, creating outlandish effects that allow matter to essentially leak away.
Recent calculations suggest a startling expansion of this theory. While Hawking radiation was once thought to be unique to the vicinity of black holes, new research indicates that such evaporation may be commonplace throughout the universe. This implies that stars, planets, and even everyday objects like petunias emit a form of radiation that, given enough time, will cause all matter to disappear particle by particle.
This shift in perspective moves evaporation from a niche astronomical phenomenon to a fundamental property of reality. It suggests that the 'timeless' nature of black holes is an illusion; both the largest and smallest things in the universe are subject to a slow, inevitable transition into nothingness.
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Sources
- Summary by Intellect · source: 18 Subatomic Stories: When black holes evaporate
- Also: Black Holes Evaporate--Now Physicists Think Everything Else Does, Too
- Also: Subatomic Stories: When black holes evaporate
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