Home > Astronomy, Astrophysics, Cosmology, General Astronomy > Rapid Expansion or Something Weird in the Early Universe

Rapid Expansion or Something Weird in the Early Universe


The widely-accepted theory of cosmic inflation states that our universe expanded rapidly in the moments after its birth, resulting in the immense expanse we see today.

Cosmic inflation explains why the universe is billions of years old, as well as why the universe is nearly flat. The theory’s conclusions about how the universe should look match observations by NASA’s Wilkinson Microwave Anisotropy Probe (WMAP).

But is inflation the only model that can explain the beginnings of the universe?

That’s the question that University at Buffalo physicists Ghazal Geshnizjani, Will Kinney and Azadeh Moradinezhad Dizgah set out to answer with their study, “General Conditions for Scale-Invariant Perturbations in an Expanding Universe.”

Full Story: http://www.buffalo.edu/news/13219

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