The triumph was almost comic in its bad luck. Newall installed the instrument at Ferndene, his home in Gateshead, in the industrial northeast of England, a place of coal smoke, gloom, and skies that rarely cleared. A telescope built to pierce the heavens spent its early life squinting through soot. Within four years, Alvan Clark's 26-inch refractor for the United States Naval Observatory stole the title of world's largest. Newall, hampered by light pollution and weather, made almost no significant observations. His one noteworthy achievement was a set of meticulous drawings of Comet Coggia in 1874, a flicker of brilliance from an instrument that deserved far darker skies.

After Newall's lifetime the telescope moved to the Cambridge Observatory in 1891, where it served for decades. Then, in 1959, it embarked on the strangest leg of its journey. The National Observatory of Athens accepted the donation of the great Victorian refractor and shipped it to Greece. There was a logic to the choice beyond simple generosity: the observatory's central premises at Thiseio sat in the brightening heart of Athens, useless for serious astronomy. The Newall would become the largest telescope in Greece, and it needed dark skies the capital could no longer offer.

Its new home rose on the Koufos hill at Penteli, about 18 kilometers from central Athens, at an altitude of 500 meters. The dedicated building, begun in 1957, was raised from Pentelic marble, the same luminous stone the ancient Athenians quarried from this very mountain to build the Parthenon. Beneath a dome 14 meters across, the telescope is a monster of Victorian engineering: nine meters long, weighing 16,000 kilograms, mounted on a German equatorial frame. The whole observatory floor can rise and fall nearly five meters to meet the eyepiece. Astronomers had been watching the heavens from this hilltop since Stavros Plakidis set up shop here in 1936.

Even Penteli could not stay dark forever. By 1980, the relentless spread of Athens and its lights ended the telescope's career as a research instrument, the same fate that had dogged it in smoky Gateshead more than a century before. Yet the Newall Telescope did not fall silent. It remains operational, turned now toward education, letting visitors and students press an eye to a lens that was the finest in the world when Victoria ruled and Cooke's workshop labored over two precious slabs of glass. The giant that never found its sky finally found a purpose: showing the heavens to anyone willing to climb the marble hill.