The Juno mission at Jupiter is almost certainly over
An article yesterday at Space.com speculated that the Juno mission to Jupiter is likely over, but added that we cannot yet be sure because the government shutdown has prevented NASA from making any definitive announcement.
NASA’s management had previously extended the orbiter’s mission several times, with the last extension going until the end of the 2025 fiscal year, that ended on September 30, 2025. No new budget has yet been approved, and the proposed Trump budget had included no money for extending the mission farther.
Due to the government shutdown, NASA is currently unable to say whether Juno is still operating or already powered down. At the time of publication, responses from agency officials state that “NASA is currently closed due to a lapse in government funding … Please reach back out after an appropriation or continuing resolution is approved.”
Under shutdown rules, only missions that fall under “excepted activities” — those required to protect life, property, or national security — can continue operations or communications. NASA’s continuity plans also specify that carryover funding may only be applied to “presidential priorities,” which limits what science programs can proceed during a lapse.
Juno does not fall into those protected categories, and was also zeroed-out on the President’s fiscal year 2026 budget request — making the mission, presumably, not a priority. So, until normal government operations resume, the spacecraft’s future is uncertain.
I think Juno’s future at this point is not uncertain in the least. While other active missions that the Trump proposed shutting down might get revived, Juno is unlikely to be one of them. I suspect the science team has put it in hibernation, and is already beginning to move on to other projects and work. They are being coy about this in the faint hope Congress will save Juno, but this should not be a priority. At this point I think NASA would be wiser to spend its resources elsewhere.
An article yesterday at Space.com speculated that the Juno mission to Jupiter is likely over, but added that we cannot yet be sure because the government shutdown has prevented NASA from making any definitive announcement.
NASA’s management had previously extended the orbiter’s mission several times, with the last extension going until the end of the 2025 fiscal year, that ended on September 30, 2025. No new budget has yet been approved, and the proposed Trump budget had included no money for extending the mission farther.
Due to the government shutdown, NASA is currently unable to say whether Juno is still operating or already powered down. At the time of publication, responses from agency officials state that “NASA is currently closed due to a lapse in government funding … Please reach back out after an appropriation or continuing resolution is approved.”
Under shutdown rules, only missions that fall under “excepted activities” — those required to protect life, property, or national security — can continue operations or communications. NASA’s continuity plans also specify that carryover funding may only be applied to “presidential priorities,” which limits what science programs can proceed during a lapse.
Juno does not fall into those protected categories, and was also zeroed-out on the President’s fiscal year 2026 budget request — making the mission, presumably, not a priority. So, until normal government operations resume, the spacecraft’s future is uncertain.
I think Juno’s future at this point is not uncertain in the least. While other active missions that the Trump proposed shutting down might get revived, Juno is unlikely to be one of them. I suspect the science team has put it in hibernation, and is already beginning to move on to other projects and work. They are being coy about this in the faint hope Congress will save Juno, but this should not be a priority. At this point I think NASA would be wiser to spend its resources elsewhere.