With the Cosmic Watch app, you can see how time relates to your position in the solar system. (Image credit: Cosmic Watch) Since 1967, the National Institute of Standards and Technology (NIST ...

The astronomical clock has been repaired many times throughout the years, and the moving gears and components restored. On May 8, 1945, the tower nearly collapsed during Nazi attacks in World War II.

Auctions A Towering 18th-Century Astronomical Clock, Made by a Clockmaker to King Louis XV, Could Fetch $850,000 at Auction. The clock still works, even after two and a half centuries.

Among the clocks in the Drexel Founding Collection is the famous David Rittenhouse astronomical, musical tall-case clock from 1773. The clock was donated to Drexel in 1894 by George W. Childs, Anthony ...