Voyager 1, launched by NASA in 1977, has traveled over 25 billion kilometers and crossed into interstellar space in 2012, yet its plutonium-238 RTG power source is gradually depleting, with scientists predicting that the spacecraft will cease transmitting data back to Earth sometime in the 2030s, marking the end of humanity's longest-running deep space communication signal.
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Voyager 1 has been traveling for 49 years and is still calling home #shortsAdded:
25 billion kilometers. Voyager 1 crossed into interstellar space in 2012 and is still transmitting, powered by a plutonium battery that is steadily running out. Sometime in the 2030s, the world will lose its longest-running signal, currently arriving from
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