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Can aliens live on our planet?

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First, they'd need to find Earth from afar, either by watching our sun wobble as the planet's gravity tugs against it, or by seeing the sun dim as Earth blocks a tiny fraction of sunlight during its orbit. read more

Aliens have been visiting our planet for thousands of years. Some apparently have needed to use helmets, giving the great many drawing and carvings found all over the world depicting odd looking humanoids with helmets on. read more

Professor Conway Morris claims that as a result of this, life on other Earth-like planets would follow similar evolutionary paths to those on our own planet. nasa boss believes in aliens The Administrator of Nasa, Charles Frank Bolden Jr, has said he believes there is life outside of Earth. read more

One theory, titled the "Zoo hypothesis," posits that aliens are actually preventing us from contacting them, so that the extraterrestrial beings don't interrupt our natural development. In short, Earth might be a "zoo" for aliens, to watch our growth as a species. read more

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