General Discussion
In reply to the discussion: UFOs explained [View all]PoindexterOglethorpe
(25,855 posts)They didn't last very long, and were soon replaced by population II stars, which actually had some metals, but still weren't what was needed to potentially seed life. More recently population I stars, the ones which are mostly the stars currently in the universe, came into being. Not a lot of population II stars are still around, although some of them are.
It's also important to understand that G type stars like our sun, are a tiny percentage of the stars in our galaxy. About 70% of the stars are red dwarfs, which are quite different. So yeah, they might well spawn intelligent, technological civilizations, but I'll go out on a limb here and say that those civilizations will be VERY different from ours.
It's also important to recognize the importance of our large moon, which is probably extremely important in the evolution of life on our planet.