Quote:
Originally posted by Tinaa@Nov 16 2003, 03:49 AM
I didn't think of that! Of course we are made of stardust. I was just thinking that if the clusters are supposed to be so old, maybe there is something out there we're missing. How do we know they are all first generation stars?
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We know they're first generation stars by looking at their spectra. No heavy elements. No carbon. No oxygen. No silicon. No iron. No calcium. None of the things that are needed to make life "as-we-know-it". Presumably any planets around such stars have similar composition - hydrogen and helium and precious little else.
Now life "as-we-don't-know-it" (e.g. dark energy kangaroos) might just exist there, but why confine them to globular clusters? They might exist anywhere.
Speculation is so much fun, and inexpensive too.