On November 16, 1974, humans sent their first message to the stars in an attempt to contact extraterrestrials. They did this using what was then the largest radio telescope in the world, located at ...

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Add Yahoo as a preferred source to see more of our stories on Google. One of the largest searches for alien intelligence in history is nearing completion, thanks to the help of more than 2 million ...

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Early reports that a secondary dish at the observatory was destroyed by Maria turn out not to be correct, according to a group that helps run the... Puerto Rico's Arecibo Radio Telescope Suffers ...