In 1960, Ray Bradbury wrote an article for Life magazine on the then new science of SETI, the Search for Extraterrestrial Intelligence. Life's archive is available on Google Books, so you can read the entire article for free here.
Seven years later, another Bradbury article for Life won him an award from the Aviation Space Writers Association. The article "An Impatient Gulliver Above Our Roofs" details Bradbury's impressions of his first visit to the Manned Spacecraft Center in Houston, Texas, and of the Saturn/Apollo Moon programme. The full article, with some beautiful illustrations is here. Bradbury's acceptance speech for the award can be read here.