"Alfred A. Aburto Jr." wrote in message y.com...

It is interesting too I think because it brings forward the
possibility that
life may have started much earliar than now thought? ... perhaps?

It is an issue of "metallicity" I know ... I wonder what is the
highest
atomic number element required by the simplest lifeform we know?
Al

Of course organisms need trace metals, but at least H, C, N, O, P, S
are the main constituents.

But without Mg, no chlorophyl, without Fe no haemoglobine.

Unfortunately the trace elements are used for all sorts of functions,
so I'd guess no life before the first supernovas have enriched the
clouds.

Regards

Carsten Nielsen
Denmark