Astronomers Find First Evidence Of Other Universes

[Dave Lane]

Our cosmos was “bruised” in collisions with other universes. Now astronomers have found the first evidence of these impacts in the cosmic microwave background



There’s something exciting afoot in the world of cosmology. Last month, Roger Penrose at the University of Oxford and Vahe Gurzadyan at Yerevan State University in Armenia announced that they had found patterns of concentric circles in the cosmic microwave background, the echo of the Big Bang.

This, they say, is exactly what you’d expect if the universe were eternally cyclical. By that, they mean that each cycle ends with a big bang that starts the next cycle. In this model, the universe is a kind of cosmic Russian Doll, with all previous universes contained within the current one.

That’s an extraordinary discovery: evidence of something that occurred before the (conventional) Big Bang.

Today, another group says they’ve found something else in the echo of the Big Bang. These guys start with a different model of the universe called eternal inflation. In this way of thinking, the universe we see is merely a bubble in a much larger cosmos. This cosmos is filled with other bubbles, all of which are other universes where the laws of physics may be dramatically different to ours.

These bubbles probably had a violent past, jostling together and leaving “cosmic bruises” where they touched. If so, these bruises ought to be visible today in the cosmic microwave background.

Now Stephen Feeney at University College London and a few pals say they’ve found tentative evidence of this bruising in the form of circular patterns in cosmic microwave background. In fact, they’ve found four bruises, implying that our universe must have smashed into other bubbles at least four times in the past.

Again, this is an extraordinary result: the first evidence of universes beyond our own.

So, what to make of these discoveries. First, these effects could easily be a trick of the eye. As Feeney and co acknowledge: “it is rather easy to fifind all sorts of statistically unlikely properties in a large dataset like the CMB.” That’s for sure!

There are precautions statisticians can take to guard against this, which both Feeney and Penrose bring to bear in various ways.

But these are unlikely to settle the argument. In the last few weeks, several groups have confirmed Penrose’s finding while others have found no evidence for it. Expect a similar pattern for Feeney’s result.

The only way to settle this will be to confirm or refute the findings with better data. As luck would have it, new data is forthcoming thanks to the Planck spacecraft that is currently peering into the cosmic microwave background with more resolution and greater sensitivity than ever.

Cosmologists should have a decent data set to play with in a couple of years or so. When they get it, these circles should either spring into clear view or disappear into noise (rather like the mysterious Mars face that appeared in pictures of the red planet taken by Viking 1 and then disappeared in the higher resolution shots from the Mars Global Surveyor).

Planck should settle the matter; or, with any luck, introduce an even better mystery. In the meantime, there’s going to be some fascinating discussion about this data and what it implies about the nature of the Universe. We’ll be watching.

Ref:

http://arxiv.org/abs/1012.1995: First Observational Tests of Eternal Inflation

http://arxiv.org/abs/1011.3706: Concentric Circles In WMAP Data May Provide Evidence Of Violent Pre-Big-Bang Activity

[Buck]

If this is true, the word universe is going to need a new definition.

u·ni·verse
ˈyo͞onəˌvərs
noun
1.
all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.

[petegz28]

Originally Posted by Buck

If this is true, the word universe is going to need a new definition.

u·ni·verse
ˈyo͞onəˌvərs
noun
1.
all existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.

Not necessarily. The concept of a "multi-verse" is not anything new. So not so much a re-definition so much as a clarification.

[Psyko Tek]

Originally Posted by petegz28

Not necessarily. The concept of a "multi-verse" is not anything new. So not so much a re-definition so much as a clarification.

according to Stan Lee we are universe 616

in DC we are earth one, but there is an earth prime
so it gets confusing
and then there is the bleed...

[cosmo20002]

So fascinating...but makes you a little dizzy trying to make sense of it.

[-King-]

Originally Posted by cosmo20002

So fascinating...but makes you a little dizzy trying to make sense of it.

This is what I' saying. I just have no way of contexualizing any of this.

[notorious]

Originally Posted by cosmo20002

So fascinating...but makes you a little dizzy trying to make sense of it.

I know.


28 points........

[BigRedChief]

Originally Posted by Buck

it has been expanding since its creation in the Big Bang about 13 billion years ago.

not to quibble but we just discovered a 13.6 billion year old universe.

[J Diddy]

Originally Posted by BigRedChief

not to quibble but we just discovered a 13.6 billion year old universe.

Here in America ****ers can't vote without identification but yet we listen to some shit cooking in the microwave and we immediately ascertain it's age and what it is.

I call bullshit. The only thing I hear in my microwave is awfully similar to Joe's Apartment.

[BigRedChief]

Originally Posted by Dick Bull

Here in America ****ers can't vote without identification but yet we listen to some shit cooking in the microwave and we immediately ascertain it's age and what it is.

I call bullshit. The only thing I hear in my microwave is awfully similar to Joe's Apartment.

30 years ago our best scientists thought black holes were a myth.

Some current scientists theorize that our entire universe may be a black hole or its a Star Trek like gateway to another universe.

Now, Stephen Hawking (maybe the smartest man on the planet) came out recently with a paper that said the event horizon may not be so clear. That its an apparent horizon. Which means in theory a black hole can show up anywhere.

Bottom line in 10 years, what we know will be totally different.

[-King-]

I can't even begin to comprehend other universes.
Posted via Mobile Device

[Saccopoo]

Originally Posted by -King-

I can't even begin to comprehend other universes.
Posted via Mobile Device

The bigger question is what's beyond those?

[HonestChieffan]

Did you get a picture dave?

[Dave Lane]

Originally Posted by HonestChieffan

Did you get a picture dave?

Actually I just got this one...

[Dayze]

Originally Posted by Dave Lane

Actually I just got this one...

so bad ass.