Last updated on December 18, 2013 at 1:21 EST  Latest Horizon
problem Stories  2006-03-16 12:45:00  NASA -- You don't get much
closer to the big bang than this. Scientists peering back to the
oldest light in the universe have evidence to support the
concept of inflation, which poses that the universe expanded
many trillion times its size faster than a snap of the fingers
at the outset of the big bang. We're talking about when the
universe was less than a trillionth of a trillionth of a second
old. In that crucial split second, changes occurred that allowed
for the creation of stars and...  Latest Horizon problem
Reference Libraries  2004-10-19 04:45:41  Inflation -- Inflation
is the idea - first proposed by Alan Guth (1981) - that the
nascent universe passed through a phase of exponential expansion
that was driven by a negative vacuum energy density (positive
vacuum pressure). This expansion can be modelled by a non-zero
cosmological constant. As a direct consequence of this
expansion, all of the observable u