A Parallel Universe
A world the opposite of ours. Fact or Fiction?
But on another world, it does come down tails. And when that happens, the two worlds split apart.”
- Philip Pullman
What is a Parallel Universe?
How is it possible?
Types of Parallel Universe
There first one is the Bubble Universe (Source: Gizmodo). This is the multiverse where the theory is there are some parts of the universe that we cannot see, or that are hidden inside black holes and we will never see them. There may be other universes, but the laws of physics only allowed us to live where we are. The second type is Membranes and Extra Dimensions (Source: Gizmodo). String Theorists came up with this theory that our universe is just a three dimensional surface, that is part of a "super universe" which has 9 spacial dimensions. This would create room for other three dimensional universes just like ours. Finally, there is the Many World Theory (Source: Gizmodo). This is the theory created by Hugh Everett, and the most common one when we think of parallel universe. This theory is based largely on quantum mechanics, which many physicist don't completely understand. This theory proposes that every possible outcome actually happens in a different universe and we are playng out only one of those story lines. This theory can be combined with the bubble universe theory because every outcome could really be playing out and we just don't know it because we cannot see those universes, and we are just playing out one possible outcome.
We cannot see other universes because they are too far.
Membranes and Extra Dimensions
Every Universe is a three dimensional surface, and is part of a nine dimensional surface.
Many Worlds Theory
Every possible outcome plays out in another universe.
Proof That They Exist
Scientists say that they studied cosmic microwave background radiation (CMB) after the big bang, and found that they found evidence that four circular patterns where our universe is found, crashed into other universes at least four times (Source: Daily Mail). This means that other universes, with different physics as our own, all exist at the same time. They say these findings will be controversial, but if this bubble collision is verified it could lead to insight on many other universes. The CMB dates back to 300,000 years after the big bang and has now cooled (Source: Daily Mail).
Clark, Josh. "Do parallel universes really exist?" 17 October 2007. HowStuffWorks.com. <http://science.howstuffworks.com/science-vs-myth/everyday-myths/parallel-universe.htm> 20 May 2013.
Parallel Universe. April 14 2012. QuantumJumping.com. <http://www.quantumjumping.com/articles/parallel-universe/parallel-universes-theory/> 20 May 2013.
Wagner, Kyle. "How parallel universes actually work, scientifically." 4/02/13. gizmodo.com. <http://gizmodo.com/5993336/how-parallel-universes-actually-work-scientifically> 20 May 2013
Firth, Niall. "First evidence of other universes that exist alongside our own after scientists spot 'cosmic bruises'" 17 December 2010. Dailymail.co.uk. <http://www.dailymail.co.uk/sciencetech/article-1338818/First-evidence-universes-exist-alongside-discovered.html> 20 May 2013