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NASA will test a key deep space navigation tool this year
The Deep Space Atomic Clock (DSAC) is finally ready for testing, and NASA's JPL has begun preparing it for launch this year after working on it for two decades. Current space vehicles and observatories already use atomic clocks for navigation -- they are, after all, some of the most accurate timekeeping devices ever. However, the way they work isn't ideal for use in vessels going beyond Low-Earth Orbit.
