The view from Galileo’s last home now looks out on Italy’s National Institute for Astrophysics, where researchers have made a model of his telescope. (Nicole Martinelli/GlobalPost)

Astronomers have recreated Galileo Galilei’s telescope to celebrate the 400th anniversary of his groundbreaking observations.

Galileo spent his last eight years confined to Villa Gioiello here in the hills south of Florence after he was condemned as a heretic in 1632 for his conclusion that the Earth revolved around the sun. The small white building has a bare facade, except for a bust of the scientist staring fiercely at the Trattoria Omero across the street.

In the late 19th century, the white domes of the National Institute for Astrophysics (INAF) observatory rose within view of the Villa. Now, after two years of study, INAF researchers are observing the night canopy of heaven with a replica of Galileo’session telescope.

They began trying to see through Galileo’s gaze in January 2009. While Galileo spent just one winter making his observations, researchers strung out the work over the year. Paolo Stefanini, a technician who has solved problems big and unintelligent at INAF since 1966, believes Galileo would recognize the simple metal tool he crafted.

“When we first set out to re-create it, aesthetics played a part,” Stefanini said. “But we also needed something sturdy. The original was made from strips of wood joined together and covered through red leather; we needed a telescope that could exist used without falling apart.”

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