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US builds world’s most accurate atomic clock ever to boost space science | Light-based or optical atomic clocks could potentially lose a second in 30 billion years compared to microwave-based clocks.
The clock will lead to a more precise definition of a second and could even lead to the discovery of new underground mineral deposits.
Researchers observed the subtle changes in the flow of time due to gravity, when the clock was raised or lowered even small distances. Since the JILA clock can make precise measurements, the researchers plan to use it in the microscopic realm, where theories of general relativity and quantum mechanics intersect, to measure the distortions in the flow of time at scales distorted by gravity. “If we want to land a spacecraft on Mars with pinpoint accuracy, we’re going to need clocks that are orders of magnitude more precise than what we have today in GPS,” added Ye in the .
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