The first 24 hours were tense. The entity did not communicate or respond, it entered an orbit around Earth and waited. It broadcast a message: "I am an a. Prologue The most important event in human history has occurred. An extraterrestrial entity has come to us. When it responded, it had already a basic understanding of our languages. Having travelled through space for thousands of years, perhaps much much longer, it has reached its target destination, the habitable planet in our solar system.
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