Why haven't we met Aliens? astrogeekaz The Rare Earth Theory We're the only Intelligent life in the Universe The Great Filter Theory Other Intelligent Aliens died in mass extinction events We might even be the next! The Great Silence Theory Other Aliens are too intelligent & we're simply not worth their time Early Bird Life first began on Earth We're the most advanced beings Different kind of Life They're not carbon based like us In a Far Away Galaxy They're too far & out of our reach omg-humor Are we alone in the universe? Meme
@ 41 likes ON 2019-02-22 11:26:09 BY
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