Timekeeper Not Losing a Single Second

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According to the journal Science, physicists have made a timekeeper that is so precise it will not gain or lose a second for more than 200 million years. The current official clock used by the National Institute of Standards and Technology, is accurate for only 80 million years.

RENEE MONTAGNE, host:

Good morning. I'm Renee Montagne. Albert Einstein had a lot to say about time, and now physicists have made a timekeeper so accurate - according to the Journal of Science - it's so precise it will not gain or lose a second for over 200 million years.

The current official clock, is by the National Institute of Standards and Technology, is accurate for only 80 million years.

This is MORNING EDITION. And next, some news begins, now - I mean, now.

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