A Perfect Universe: could it have been born completely uniform? (Synopsis) [Starts With A Bang]

“First, you should check out my house. It’s, like, kinda lame, but way less lame than, like, your house.” -Lumpy Space Princess, Adventure Time

Billions of years ago, before the Universe contained clusters, galaxies, stars or even neutral atoms, everything was uniform. Almost perfectly uniform, where the densest regions weren’t even 0.01% denser than average. Over billions of years, those overdense regions have attracted more and more matter and grown under the influence of gravity.

Both simulations (red) and galaxy surveys (blue/purple) display the same large-scale clustering patterns. Image credit: Gerard Lemson & the Virgo Consortium, via http://ift.tt/1l8cv5n.

By today, we have the incredible rich, clumpy, structured Universe we exist in. But what about a more perfect Universe, one that was totally uniform? Could that have given rise to us? And if not, what is the limiting factor? It’s a fascinating question, and one science can answer.

Fluctuations on various scales give rise to the structure we see on various scales. Without imperfections, there’s nothing to grow. Image credit: NASA / WMAP science team.

Come get the full story on the idea of a perfect Universe, and learn the most valuable cosmic lesson of all: sometimes our imperfections are necessary for the best outcomes of all.

from ScienceBlogs http://ift.tt/2hOzT0e

“First, you should check out my house. It’s, like, kinda lame, but way less lame than, like, your house.” -Lumpy Space Princess, Adventure Time

Billions of years ago, before the Universe contained clusters, galaxies, stars or even neutral atoms, everything was uniform. Almost perfectly uniform, where the densest regions weren’t even 0.01% denser than average. Over billions of years, those overdense regions have attracted more and more matter and grown under the influence of gravity.

Both simulations (red) and galaxy surveys (blue/purple) display the same large-scale clustering patterns. Image credit: Gerard Lemson & the Virgo Consortium, via http://ift.tt/1l8cv5n.

By today, we have the incredible rich, clumpy, structured Universe we exist in. But what about a more perfect Universe, one that was totally uniform? Could that have given rise to us? And if not, what is the limiting factor? It’s a fascinating question, and one science can answer.

Fluctuations on various scales give rise to the structure we see on various scales. Without imperfections, there’s nothing to grow. Image credit: NASA / WMAP science team.

Come get the full story on the idea of a perfect Universe, and learn the most valuable cosmic lesson of all: sometimes our imperfections are necessary for the best outcomes of all.

from ScienceBlogs http://ift.tt/2hOzT0e