NASA Tests Atomic Clock for Deep Space Navigation

A glimpse of the Deep Space Atomic Clock in the middle bay of the General Atomics Orbital Test Bed spacecraft. (Credit: NASA)

PASADENA, Calif. (NASA PR) — In deep space, accurate timekeeping is vital to navigation, but not all spacecraft have precise timepieces aboard. For 20 years, NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California, has been perfecting a clock. It’s not a wristwatch; not something available in a store. It’s the Deep Space Atomic Clock (DSAC), an instrument being built for deep space exploration.

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