Do you ever wonder what would have happened if you had made a different choice, said a different thing, or turned a different corner? Would these decisions have affected your life, or even the world around you?

Do a myriad of different worlds exist where all of these possibilities play out? Where the meteor missed the earth millions of years ago leaving the dinosaurs to rule, or where Germany had won the World War?
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Two Australian scientists say they’ve found evidence of a parallel universe within our own Solar System. When the Near-Shoemaker space probe landed on the Eros asteroid, scientists could see craters where it had been hit by “mirror matter.” Mirror matter is a hypothetical “reflection” of normal matter that may be necessary to keep the Universe in balance. In our world, nature has a left-right symmetry, meaning elementary particles display a preference for left over right, and scientists think a parallel universe must exist where matter works the opposite way.
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Scientist now say we are definitely not alone, that our universe contains an infinite number of other universes, much like our own, called O-regions, and that we may someday be able to contact them.

Jaume Garriga, of the University of Barcelona and Alexander Vilenkin, of Tufts University, say that their ?many worlds in one? concept means that these other worlds are likely to be similar to our own, with similar life forms. They will publish their hypothesis this fall in the journal Gravitation and Quantum Cosmology.
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