The Earth as a habitable planet may be rarer than we thought. Scientists have used computer models to show that the reason our planet and has a moderate climate and isn't an ocean world is because there was a massive star in the vicinity of the primordial solar system. This star provided the growing inner planets with radioactive elements that evaporated some of the water that otherwise would have been delivered to them.
.. Continue Reading Massive star may be the reason Earth isn't a waterworldCategory: Space
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from New Atlas (Gizmag) http://bit.ly/2E57Ljw
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