You may have heard the theory that it's possible there are multiple universes where you exist in each one but live a different life and make different decisions, resulting in a different outcome in each universe. We know this as the multiverse. But where did the idea of multiple universes come from? You are going to read that.


You may have heard the theory that it's possible there are multiple universes where you exist in each one but live a different life and make different decisions, resulting in a different outcome in each universe. We know this as the multiverse. But where did the idea of multiple universes come from? You are going to read that.


You may have heard the theory that it's possible there are multiple universes where you exist in each one but live a different life and make different decisions, resulting in a different outcome in each universe. We know this as the multiverse. But where did the idea of multiple universes come from? You are going to read that.


Other alternate versions of you might be doing the same thing you're doing right now, but some might be wearing different clothes and have made vastly different career and life choices.


But how could this be possible? Because the observable universe extends only as far as light has traveled in the 13:07 billion years since the Big Bang, the space and time beyond this distance can be considered to be its own separate universe. And if this is true, then there would be a multitude of universes existing next to each other in a giant patchwork of universes.


Although the idea of parallel universes or a multiverse remains a mystery with some calling the idea pure science fiction. It's still one of the biggest debates between experts with some believing they exist while others disagree.


Let's take a look at why some researchers think they exist and the unexplained scientific events that could be proof that parallel universes might exist. But first, we need a little bit of physics to understand everything. In quantum theory, an elementary particle, such as an electron, doesn't exist in a single state, but in a multiplicity of locations, velocities, and orientations. One of the most famous logic-defying experiments in physics is the double-slit experiment. Waves that pass through two narrow slits will form an interference pattern on a screen. It doesn't matter if they're light waves, water waves, or sound waves. However, light isn't only a wave, it's also a particle called a photon.


Now, here's where it starts to get weird. If you shoot a photon through the double slits, it still forms an interference pattern as if the photon was traveling through both slits at the same time. But here's where it gets more bizarre. Just by observing the double-slit experiment, the behavior of the photon changes. Even if the photons are sent through the slits one at a time, there is still a wave present that produces the interference pattern. This is a wave of probability because the experiment is set up so the scientists don't know which of the two slits the single-photon will pass through. But if they try to find out which slit the photon goes through by setting up detectors in front of each slit, then the interference pattern doesn't show up at all. So, the scientists tried a variation on the double-slit experiment and placed a special crystal at each slit that would split an incoming photon into an identical pair. One photon should create the standard interference pattern while the other would travel to the detector.


Now, here's where it starts to get weird. If you shoot a photon through the double slits, it still forms an interference pattern as if the photon was traveling through both slits at the same time. But here's where it gets more bizarre. Just by observing the double-slit experiment, the behavior of the photon changes. Even if the photons are sent through the slits one at a time, there is still a wave present that produces the interference pattern. This is a wave of probability because the experiment is set up so the scientists don't know which of the two slits the single-photon will pass through. But if they try to find out which slit the photon goes through by setting up detectors in front of each slit, then the interference pattern doesn't show up at all. So, the scientists tried a variation on the double-slit experiment and placed a special crystal at each slit that would split an incoming photon into an identical pair. One photon should create the standard interference pattern while the other would travel to the detector.


It might be more likely that you observe the object in one place or another, but it's not located in a particular place. After nearly a century of experimentation, this phenomenon is now a core aspect of the physical world. It might sound crazy, and even Einstein struggled with the idea of what happened to all the other possible locations where the object could have been, and why should an object's behavior depend on whether or not somebody was looking at it? Someone was bound to come up with a radical explanation for this phenomenon. And in 1957, a man by the name of Hugh Everett came up with the wild idea about how to fix this most perplexing problem in quantum mechanics. It was then that he came up with the wild idea about how to fix it.


Therefore, ever imagined a multiverse full of different realms in which all the possibilities dictated by quantum mechanics could exist at once. He proposed that all possible outcomes do occur, but that only a single version plays out in the world we live in. All the other possibilities split off from us, with each one giving rise to its own separate world. And everything that could happen does happen in some worlds of this sounded bizarre, and no one would take it seriously. But now, some physicists are considering the possibility of a multiverse.

Theories of cosmology, quantum physics, and the very philosophy of science have some problems that could be solved if a multiverse existed.


Along with the idea of multiple universes created by infinitely extending space-time, other universes could also come into existence through a theory called eternal inflation. We already know about how the universe expanded rapidly after the Big Bang and inflated somewhat like a balloon. Eternal inflation theorizes that some pockets of space stop inflating while others continue to inflate, giving rise to many isolated bubble universes.

That said, our universe could be just a separate bubble in the vast sea of space that contains other bubble universes like ours. There's even another idea that comes from string theory called "brain worlds," which are parallel universes that hover just out of reach of our own. This theory is centered around the idea that there could be many more dimensions to our world. Besides the three space dimensions and the dimension of time, these three-dimensional brain worlds could exist in higher-dimensional space.


Recently, a scientific experiment was done, and the outcome was evidence of parallel universes. In 2016, a group of NASA scientists was working with NASA's Antarctic impulsive transient antenna, or "Nita," for short. It's a high-altitude helium balloon with an array of radio antennas. This instrument was designed to detect ultra-high energy cosmic ray neutrinos, which are high-energy particles a million times more powerful than anything we can create on Earth. And they're the only neutrinos that can reach Earth without being weakened or reduced. Low energy subatomic neutrinos with near-zero masses can completely pass through the earth. However, high energy particles would be stopped by the planet's solid matter, which is why high energy particles are detected coming down from space, and the constant wind of these high energy particles falls to earth.

 

However, the team of NASA scientists was taken aback when Anita detected heavier particles known as "TAU neutrinos" coming up from the earth. If the particles were indeed real, it would mean that they would have been traveling back in time and could be evidence of a parallel universe. But this would also mean that the parallel universe would be running backward in time, but the initial thing about this is that if there were any life in this possible parallel universe, they would see us as the ones moving backward in time.


So, what's going on here? No one is certain yet, but the main investigator of a neat said that they encountered a small number of anomalies in their data. And once they've exhausted all the possible explanations within the standard model of physics, only then will it be time to consider ideas that push those boundaries. But more evidence has been found in space that could point to the existence of parallel universes. There are significant events in time and space that leave their marks on the cosmos, and the Big Bang left its footprint on everything we observe today. Recently, the European Space Agency's “Planck” satellite mapped the cosmic microwave background, the primordial microwave radiation that fills the known universe. This relic radiation is a perfect record of our universe from the moment it inflated and expanded.


So, what's going on here? No one is certain yet, but the main investigator of a neat said that they encountered a small number of anomalies in their data. And once they've exhausted all the possible explanations within the standard model of physics, only then will it be time to consider ideas that push those boundaries. But more evidence has been found in space that could point to the existence of parallel universes. There are significant events in time and space that leave their marks on the cosmos, and the Big Bang left its footprint on everything we observe today. Recently, the European Space Agency's “Planck” satellite mapped the cosmic microwave background, the primordial microwave radiation that fills the known universe. This relic radiation is a perfect record of our universe from the moment it inflated and expanded.