Did Alien Life Evolve Just After the Big Bang?

[astr0144]

Did Alien Life Evolve Just After the Big Bang?

By By Katia Moskvitch,
Space.com Contributor

Earthlings may be extreme latecomers to a universe full of life, with alien microbes possibly teeming on exoplanets beginning just 15 million years after the Big Bang, new research suggests.

Traditionally, astrobiologists keen on solving the mystery of the origin of life in the universe look for planets in habitable zones around stars. Also known as Goldilocks zones, these regions are considered to be just the right distance away from stars for liquid water, a pre-requisite for life as we know it, to exist.

But even exoplanets that orbit far beyond the habitable zone may have been able to support life in the distant past, warmed by the relic radiation left over from the Big Bang that created the universe 13.8 billion years ago, says Harvard astrophysicist Abraham Loeb. [The Big Bang to Now in 10 Easy Steps]

For comparison, the earliest evidence of life on Earth dates from 3.8 billion years ago, about 700 million years after our planet formed.


'Warm summer day'

Just after the Big Bang, the cosmos was a much hotter place. It was filled with sizzling plasma — superheated gas — that gradually cooled. The first light produced by this plasma is the cosmic microwave background radiation (CMB) that we observe today, which dates from about 389,000 years after the Big Bang.

Now the CMB is freezing cold — around minus 454 degrees Fahrenheit (minus 270 degrees Celsius; 3 degrees Kelvin). It cooled down gradually with the expansion of the universe, and at some point during the cooling process, for a brief period of seven million years or so, the temperature was just right for life to form — between 31 and 211 degrees Fahrenheit (0 and 100 degrees Celsius; 273 and 373 degrees Kelvin).



An artist's representation of the 'habitable zone,' the range of orbits around a star where ...Earthlings may be extreme latecomers to a universe full of life, with alien microbes possibly teeming on exoplanets beginning just 15 million years after the Big Bang, new research suggests.





http://news.yahoo.com/did-alien-life-evolve-just-big-bang-112100468.html

[Norval]

, , , , , or, , , , did some ancient alien engineer our universe?

I love questions. 

[astr0144]

Another suggested theory they came up with.

I do not know the answers, wish I did..

I just post what I find... to allow others to decide or try to convince !

Matrix claims he Knows the Truth..& maybe he does ! He will disagree with most other Scientists theories !

Some of his theories are interesting...But I do not as yet fully understand them to comment with full conviction.

I am hoping that he can prove to us all what he says is truth !

That would be amazing to discover in this lifetime !

, , , , , or, , , , did some ancient alien engineer our universe?

I love questions. 

[1967sander]

There are plenty of theories that suggest that there is also a possibility that aliens could come from other dimensions and that they found a way to leap through space and dimensions using wormholes. If this is true than life exists in other parallel Universums which could be older or younger than our Universe. Fact is that our scientist have no clue what caused the Big Bang and even the Big Bang is a theory. One that is build on a few rather solid hypothysis but still a theory.