Giovanni Fazio, an American physicist, died on February 19, 2026.
He was an astrophysicist at the Center for Astrophysics | Harvard & Smithsonian who initiated and participated in multiple observation programs. In 1962, he joined the Smithsonian Astrophysical Observatory and the Harvard College Observatory, where he began a program in gamma-ray astronomy using balloon-borne and ground-based detectors and helped support the construction of the 10-meter optical reflector at the F.
L. Whipple Observatory in Arizona for the search of ultra-high-energy cosmic gamma-rays. In 1984, Fazio was selected as principal investigator for the Infrared Array Camera experiment on the Spitzer Space Telescope, which launched in August 2003.
Giovanni Fazio (1933 or 1934 – February 12, 2026) was an American physicist at Center for Astrophysics | Harvard & Smithsonian. He was an astrophysicist who has initiated and participated in multiple observation programs.