Every time my laptop or phone batteries run low, I go into panic mode. How am I supposed to live without my precious technology? I'll do whatever I have to to extend that battery life just a bit longer. Turn down the screen brightness. Turn off background apps. Farewell, Bluetooth. As it turns out, NASA's million-dollar nuclear-powered space probes run into the same problem and have essentially the same solutions.
Space.com reports that NASA can keep the Voyager 2's space mission up and running until 2026 with a fairly simple technique we've used for ages: turning stuff off. Originally the space probe was due for a complete shutdown this year because of a lack of power, but NASA found one last system it could shut down, postponing its retirement by at least three years.
Voyager 2 is now tapping into its last bit of reserve power from its voltage regulator, which under normal operation helps prevent power surges. The conserved power is being diverted to its science instruments so it can still collect data and send it back to NASA for at least another three years.
Both Voyager probes power themselves using RTGs (radioisotope thermoelectric generators) that convert the heat from plutonium into electricity. As the plutonium decays, less and less power is generated. Through the years, NASA engineers have turned off non-essential systems like heaters to keep the mission going.
Voyager's project manager Suzanne Dodd said they had been «monitoring the spacecraft for a few weeks, and it seems like this new approach is working.»
NASA doesn't seem too worried about potential power surges since it noted that the electrical systems on both the Voyager 1 and 2 probes have been stable for over 45 years. The engineering team will
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