The vastness of the cosmos, alongside the physical laws that facilitated life's emergence on Earth, strongly suggests that we are not alone in the universe.
Despite generations of searching, the interstellar distances between us and potential alien civilizations place humanity in an isolation ward, indicating a long wait before contact.
The search for extraterrestrial intelligence has evolved over less than a century, starting with physicists proposing methods for interstellar communications using radio telescopes.
Frank Drake's infamous equation—developed during the early SETI projects—offers a probabilistic approach to estimating the number of communicable civilizations in our galaxy.
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