The information signal received by Earth-based antennae from each Voyager spacecraft is equivalent to about 100 attowatts (10-16 watts). This is about one twenty-billionth the power level required to run a modern-day digital watch.

The information signal received by Earth-based antennae from each Voyager spacecraft is equivalent to about 100 attowatts (10-16 watts). This is about one twenty-billionth the power level required to run a modern-day digital watch.

 
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    Simply incredible.
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