Life Forms On Earth-Like Planets Are Probably Marine Aliens
Don’t bet on humans finding aliens just walking around on another Earth-like planet — they'll more likely be swimming. That’s the assertion of one scientist, who predicts most of the exoplanets we find in habitable zones around their stars are almost entirely covered in water. Earth itself is about 70 percent water on its surface, but the alien planets are likely “dominated by oceans spanning over 90 percent of their surface area,” speculated. Author Fergus Simpson of the University of Barcelona’s Institute of Cosmos Sciences writes that ...
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