The distribution of matter across the cosmos is most easily explained by
inflation, a theory that suggests our universe inflated rapidly - just
like a balloon - shortly after its birth, according to new research.
According to inflation, the universe expanded by a factor of at least
1078 (that's 10 with 78 zeroes after it), all in less than a second.
This stage could have formed the basis for the large-scale structure we
can detect in the distribution of galaxies around us now.
This theory can explain why the universe appears to be about 13.7
billion years old, and why it seems to be nearly flat, say University at
Buffalo physicists Ghazal Geshnizjani, Will Kinney and Azadeh
Moradinezhad Dizgah.
"The takeaway result here is that this idea of inflation turns out to be
the only way to do it within the context of standard physics," Kinney
said in a statement. "I think in many ways it puts the idea of inflation
on a much stronger footing, because the available alternatives have
problems, or weirdnesses, with them."
Inflation suggests that during the first 10 to the minus 34 seconds
(that's 0.0000000000000000000000000000000001 seconds), the universe
doubled its size at least 90 times.
This would have allowed pairs of matter and antimatter particles to
appear out of nothingness, but then move apart from each other so
quickly that they wouldn't have had time to meet and annihilate, as
matter and antimatter usually do.
http://news.yahoo.com/baby-universe-likely-expanded-rapidly-study-sugges
ts-120207339.html
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