Engineers turn off one more instrument on each Voyager spacecraft

The routes the Voyager spacecraft have
taken since launch. Not to scale.
Due to continuing reductions in the power generated by their nuclear energy sources (after a half century of operation) engineers have now turned off one more science instrument on each Voyager spacecraft in order to extend the spacecrafts’ life as long as possible.
Mission engineers at NASA’s Jet Propulsion Laboratory in Southern California turned off the cosmic ray subsystem experiment aboard Voyager 1 on Feb. 25 and will shut off Voyager 2’s low-energy charged particle instrument on March 24. Three science instruments will continue to operate on each spacecraft. The moves are part of an ongoing effort to manage the gradually diminishing power supply of the twin probes.
Even with this action, the future lifespan of both spacecraft is very limited. It is expected the savings in power will allow both to last about a year longer, well into 2026. In order to keep the Voyagers operating as long as into the 2030s mission engineers are now working up a timeline for shutting down the remaining instruments in a step-by-step manner. In that long run the goal won’t be science gathering but engineering. Can humans keep a spacecraft operating for more than a half century at distances billions of miles away?
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The routes the Voyager spacecraft have
taken since launch. Not to scale.
Due to continuing reductions in the power generated by their nuclear energy sources (after a half century of operation) engineers have now turned off one more science instrument on each Voyager spacecraft in order to extend the spacecrafts’ life as long as possible.
Mission engineers at NASA’s Jet Propulsion Laboratory in Southern California turned off the cosmic ray subsystem experiment aboard Voyager 1 on Feb. 25 and will shut off Voyager 2’s low-energy charged particle instrument on March 24. Three science instruments will continue to operate on each spacecraft. The moves are part of an ongoing effort to manage the gradually diminishing power supply of the twin probes.
Even with this action, the future lifespan of both spacecraft is very limited. It is expected the savings in power will allow both to last about a year longer, well into 2026. In order to keep the Voyagers operating as long as into the 2030s mission engineers are now working up a timeline for shutting down the remaining instruments in a step-by-step manner. In that long run the goal won’t be science gathering but engineering. Can humans keep a spacecraft operating for more than a half century at distances billions of miles away?
Readers!
My annual February birthday fund-raising drive for Behind the Black is now over. Thank you to everyone who donated or subscribed. While not a record-setter, the donations were more than sufficient and slightly above average.
As I have said many times before, I can’t express what it means to me to get such support, especially as no one is required to pay anything to read my work. Thank you all again!
For those readers who like my work here at Behind the Black and haven't contributed so far, please consider donating or subscribing. My analysis of space, politics, and culture, taken from the perspective of an historian, is almost always on the money and ahead of the game. For example, in 2020 I correctly predicted that the COVID panic was unnecessary, that the virus was apparently simply a variation of the flu, that masks were not simply pointless but if worn incorrectly were a health threat, that the lockdowns were a disaster and did nothing to stop the spread of COVID. Every one of those 2020 conclusions has turned out right.
Your help allows me to do this kind of intelligent analysis. I take no advertising or sponsors, so my reporting isn't influenced by donations by established space or drug companies. Instead, I rely entirely on donations and subscriptions from my readers, which gives me the freedom to write what I think, unencumbered by outside influences.
You can support me either by giving a one-time contribution or a regular subscription. There are four ways of doing so:
1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.
2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.
3. A Paypal Donation or subscription:
4. Donate by check, payable to Robert Zimmerman and mailed to
Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652
You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.
It’s hard to believe these are still going. That is seriously cool.
Not sure if great extensions can be made in the duration of power generation, but if the nuclear powered rockets envisioned by NASA can be realized, their long duration of acceleration will mean that our probes can reach multiple orders of magnitude further out into deep space, while still actively recording and sending data!
48 years and counting!
I sometimes wonder if the budget spent on Voyager 1 and 2 isn’t the best money, dollar for dollar, ever spent by the U.S. federal government — save possibly for the Louisiana Purchase.
A close second.