To further that point, it might be worth noting here that “metal” in astronomy parlance means anything heavier than helium. Complex life might conceivably evolve without, say, iron, but life without carbon is much less likely.
Yes—did you see that I linked to the metallicity article? (Astronomers are funny.)
Should have clicked through, in retrospect.
To further that point, it might be worth noting here that “metal” in astronomy parlance means anything heavier than helium. Complex life might conceivably evolve without, say, iron, but life without carbon is much less likely.
Yes—did you see that I linked to the metallicity article? (Astronomers are funny.)
Should have clicked through, in retrospect.