Life in the Universe?
Posted: Thu Nov 23, 2017 10:38 pm
It is generally understood that life-forms only arise and develop when certain favourable conditions are present on a 'goldilocks' planet, near enough to receive just the right amount of energy from a nearby 'sun', a star by any other name.
Something like an iron-core is needed in order to deflect the life-damaging radiation which stars naturally emit and additionally would otherwise prevent a life-sustaining atmosphere from forming.
Even given such ideal conditions, it is generally understood that life on Earth arose and developed from primitive single-celled organisms to more complex forms, only by evolution and by pure chance.
Mass extinctions (e.g. of the Dinosaurs) as a result of external catastrophe, meteorite(s), altered the course of evolution, such that mammals and man eventually appeared as the dominant life-foms.
Favourable conditions must also hold true for life in the Universe and the same sort of process, of evolution and extinctions, may (or not) have resulted in a life-form with higher intelligence.
It follows that life anywhere else in the Universe would be neither an intelligence in human-like form, nor an intelligent version of the dinosaurs, the typical S.F. reptiles or weird creatures, it's never going to happen!
Something like an iron-core is needed in order to deflect the life-damaging radiation which stars naturally emit and additionally would otherwise prevent a life-sustaining atmosphere from forming.
Even given such ideal conditions, it is generally understood that life on Earth arose and developed from primitive single-celled organisms to more complex forms, only by evolution and by pure chance.
Mass extinctions (e.g. of the Dinosaurs) as a result of external catastrophe, meteorite(s), altered the course of evolution, such that mammals and man eventually appeared as the dominant life-foms.
Favourable conditions must also hold true for life in the Universe and the same sort of process, of evolution and extinctions, may (or not) have resulted in a life-form with higher intelligence.
It follows that life anywhere else in the Universe would be neither an intelligence in human-like form, nor an intelligent version of the dinosaurs, the typical S.F. reptiles or weird creatures, it's never going to happen!