Portrait of Riccardo Giacconi
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Riccardo Giacconi is an Italian-American astrophysicist who is renowned for his pioneering contributions to the field of X-ray astronomy. Born on October 6, 1931, in Genoa, Italy, he is best known for his role in the development of X-ray telescopes and for the discovery of many astronomical X-ray sources. Giacconi's work significantly advanced the understanding of the universe beyond the optical spectrum.