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|Culture & Science - Science|
|Monday, 15 August 2011 15:47|
Cosmology, which attempt to account for the nature of the universe from a scientific standpoint, advances day by day thanks to small but constant discoveries of astronomy and physics.
A recent study strengthens the previously formulated hypothesis that the universe in which we could be just one among many, which together form a Multiverse.
The possibility that we live in a multiverse is covered by the "theory of eternal inflation." This hypothesis basically suggests that immediately after the Big Bang that formed our universe, space-time expanded at different rates in different places, giving rise to bubble universes, which would operate each with its own physical laws.
This theory of eternal inflation seemed purely theoretical until now. The new study indicate that if our universe is another universe "brothers" then we could have hit them.
These collisions between universes of the same origin, have happened, should have left traces in the form of microwave background radiation (a type of electromagnetic radiation abbreviated CMB).
"By imagining two colliding bubbles in a liquid, have to think about forming a circle on the surface where they collide, so that's the key we're looking at the microwave background radiation (CMB).," Says astrophysicist Daniel Mortlock, Imperial College London. "This is a very unique circular shape could not be caused by nothing more obvious than this."
The researchers developed an algorithm to analyze the observations of CMB and relate the figures that might match your search. The program found four regions of the universe that could be promising for the theory.
However, statistical analysis suggested that these patterns were probably random, and that coincided with the circles formed after a collision only by coincidence.
While awaiting the development of new CMB data from the Planck satellite ESO , the new study (detailed in the journal Physical Review Letters and Physical Review D.) takes one of the first empirical step in the attempt to outline a stronger theory about the Multiverse.