Were we contacted by aliens in 1977?
Are we the only island of life in the vastness of space, or is our Galaxy teeming with other civilisations? We've long been intrigued by the idea that we are not alone. The search for extra-terrestrial intelligence (SETI) - was born from this curiosity - the use of sophisticated scientific methods to try to detect a signal coming from life elsewhere in the Galaxy. In the 1960s, radio astronomy was put to work in the search. Radio telescopes surveyed the sky...
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