Approx. 1st time life could appear in universe?

[Gawdzilla Sama]

How long after the Big Bing Bang Boom would it be before life similar to Earthly early life could have appeared? One billion years? Four? Six?

[amused]

Most stars are between 1 billion and 10 billion years old. Some stars may even be close to 13.7 billion years old—the observed age of the universe. The oldest star yet discovered, HE 1523-0901, is an estimated 13.2 billion years old.[82][83]

http://en.wikipedia.org/wiki/Star

The oldest ancient fossil microbe-like objects are dated to be 3.5 Ga (billion years old), approximately one billion years after the formation of the Earth itself,[3][4] with reliable fossil evidence of the first life found in rocks 3.4 Gyr old.

http://en.wikipedia.org/wiki/Origin_of_life

So, about a billion years after 13.2 billion years ago?

[Gawdzilla Sama]

Most stars are between 1 billion and 10 billion years old. Some stars may even be close to 13.7 billion years old—the observed age of the universe. The oldest star yet discovered, HE 1523-0901, is an estimated 13.2 billion years old.[82][83]

http://en.wikipedia.org/wiki/Star

The oldest ancient fossil microbe-like objects are dated to be 3.5 Ga (billion years old), approximately one billion years after the formation of the Earth itself,[3][4] with reliable fossil evidence of the first life found in rocks 3.4 Gyr old.

http://en.wikipedia.org/wiki/Origin_of_life

So, about a billion years after 13.2 billion years ago?

...which would be...


( I don't do maffs.)

[amused]

12.2 billion years ago, or about one and a half billion after the big bang bing...(assuming a planet formed around that old star at about the same time)

But don't quote me on this, I'm mostly making it up as I go along.

[Gawdzilla Sama]

12.2 billion years ago, or about one and a half billion after the big bang bing...

Thanks.

So, what "generation" of star is Sol?

Yes, I'm working toward a point here. Sorta, maybe, could be.

[Mr P]

12.2 billion years ago, or about one and a half billion after the big bang bing...

Thanks.

So, what "generation" of star is Sol?

Yes, I'm working toward a point here. Sorta, maybe, could be.

I can't remeber where I read it but it's believed that the sun is a third generation star, probably the first generation to contain the heavier elements (especially above iron).

[Gawdzilla Sama]

12.2 billion years ago, or about one and a half billion after the big bang bing...

Thanks.

So, what "generation" of star is Sol?

Yes, I'm working toward a point here. Sorta, maybe, could be.

I can't remeber where I read it but it's believed that the sun is a third generation star, probably the first generation to contain the heavier elements (especially above iron).

Interesting. The first seas were "iron rich" to the point they would have appeared green. This may be why some life requires iron to survive now. Or not?

And do humans require anything "heavier" than iron to function?

[Tero]

Wiki, in Formation and evolution of the Solar System, is a bit vague, but it definitely came out of the garbage disposal.

[Mr P]

12.2 billion years ago, or about one and a half billion after the big bang bing...

Thanks.

So, what "generation" of star is Sol?

Yes, I'm working toward a point here. Sorta, maybe, could be.

I can't remeber where I read it but it's believed that the sun is a third generation star, probably the first generation to contain the heavier elements (especially above iron).

Interesting. The first seas were "iron rich" to the point they would have appeared green. This may be why some life requires iron to survive now. Or not?

And do humans require anything "heavier" than iron to function?

Don't we need small ammouts of zinc for something or other (element 30 to irons 27).

Not a biologist... as if it wasn't already obvious

[amused]

Well, there's a difference between 'life' and 'humans'.

[Gawdzilla Sama]

Well, there's a difference between 'life' and 'humans'.

But I'm not interested solely in "life" but in one specific kind of life and whether or not it has ever appeared in this Universe.

[Tero]

To have a planet our size, I think you need iron. Generally you will need most of the first four rows of the periodic table. Silicon is good to have, for rocks. I don't know that you would make a solid crust with mg salts, so CaCO3. But Si is light, third row, still makes rocks. Life is rocks too!

[MiM]

No life, even close to what we know would be possible in the early universe. You need debris from supernovas (probably gen2 novas, although I am not sure about that) to get the elements that can build life.

[Gawdzilla Sama]

So how far back does that put us then?

[MiM]

So how far back does that put us then?

, but much, much further than the 40 mil in the Fermi paradox.