No need for inflation if cosmos was a bouncing baby

On the bounce (Image: Richard Megna/Fundamental Photographs)

On the bounce (Image: Richard Megna/Fundamental Photographs)

OUR universe rose from the ashes of a dying cosmos, thanks to a push from a ghostly force. So says a model supporting the idea that the universe was born not with a bang, but a bounce.

What’s more, the theory would do away with the popular notion that the infant cosmos rapidly ballooned in size during a period called inflation.

The earliest light emitted in the universe, the cosmic microwave background (CMB), dates to about 380,000 years after our cosmic birth. Oddly, it is roughly uniform everywhere we look. This would not be the case if the universe grew up slowly from a single burst. Far-flung regions of the sky should have developed very differently because they were not in contact with each other.

The most widely accepted explanation is that the universe went through a period of rapid expansion in the first slivers of a second after the big bang. This inflation would cause cosmic evenness, because spots that look similar today would have been in contact initially, before suddenly getting shoved apart. Quantum fluctuations in the very early cosmos would have seeded large-scale structures like galaxies …..
Read more at http://www.newscientist.com/article/mg22029402.900-no-need-for-inflation-if-cosmos-was-a-bouncing-baby.html#.UmlrdHB7JBl

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