A 36-Year-Old Telescope Is Losing Altitude, and NASA Wants Industry’s Help
Hubble has spent 36 years above the atmosphere delivering images that rewired how astronomers understand the universe, but the hardware keeping it there is working against a clock it cannot reset. Without intervention, orbital decay will drag the telescope back into Earth’s atmosphere sometime in the early-to-mid 2030s, ending what has been one of the most actively used scientific instruments ever sent into space. NASA’s answer, for now, is a Request For Information published Thursday – a formal ask directed at commercial companies, inviting proposals on how to physically save, upgrade, or safely dispose of the observatory before gravity finishes the job.
The RFI sets a response deadline of November 30, giving companies a narrow window to lay out what they can actually do.
This is not the first time NASA has floated the idea of a commercial Hubble rescue. A similar solicitation went out several years ago, drawing interest but no executed mission. What’s different now is the timeline – the telescope’s orbital altitude has been dropping steadily since 2009, and the margin for delay is compressing each year without a reboost.
How Hubble Got Here
The Space Shuttle Columbia visited Hubble in 2002 for a servicing mission that included a reboost – pushing the telescope to a higher, more stable orbit. That was the last time anyone touched the altitude. The final shuttle servicing flight, in 2009, focused on instrument upgrades and repairs but left the orbit alone. Two years after that, NASA retired the shuttle fleet entirely, and with it went the only vehicle ever used to physically reach and service Hubble in place.
Since 2011, the telescope has been shedding altitude with no mechanism to recover it. Low Earth orbit is not a vacuum – trace amounts of atmosphere create enough drag at Hubble’s altitude to pull the observatory slowly downward over years and decades. The process is invisible in the short term but relentless. Left on its current trajectory, the telescope will reenter the atmosphere and be destroyed, though NASA wants any reentry to be controlled rather than accidental, which is part of what the RFI is asking industry to help plan for.
The core technical ask is specific: NASA wants to know which companies have current or near-term capabilities to capture Hubble and boost it to an altitude of at least 373 miles, or 600 kilometers. That figure matters because a higher orbit buys significantly more time against atmospheric drag, potentially extending the telescope’s operational life by decades rather than years. Alongside reboost proposals, the agency is also soliciting ideas for enhancing Hubble’s scientific performance and for guiding the telescope to a controlled, targeted reentry if no viable servicing mission materializes.
What a Commercial Mission Would Actually Require
Capturing a free-flying space telescope is not a straightforward docking problem. Hubble was designed to be serviced by spacewalking shuttle astronauts working from the payload bay, not by autonomous spacecraft or robotic arms approaching from the outside. Any commercial vehicle attempting to grab it would need to match Hubble’s orbit, approach without collision risk, physically secure the telescope – which has no standard docking port for this purpose – and then fire engines to raise both spacecraft together to the target altitude. The engineering challenge is real, and the RFI is partly a diagnostic tool to find out what the industry can actually deliver versus what remains aspirational.
Several companies with demonstrated on-orbit capabilities have emerged since NASA last floated a Hubble rescue concept, including operators with experience in satellite servicing and rendezvous missions. The commercial space sector has matured considerably in the intervening years, which is the underlying reason NASA is asking again now rather than writing Hubble off. A reboost that pushes the telescope to 600 kilometers would not just delay destruction – it could keep Hubble scientifically active into an era where it works alongside the James Webb Space Telescope, the two instruments covering different wavelength ranges and complementing rather than duplicating each other’s observations.
Performance enhancements are also on the table, an element of the RFI that suggests NASA is thinking beyond simple preservation. Hubble’s instruments have been updated multiple times during shuttle servicing missions, and there are components aboard the telescope that have aged past their designed service lives. A commercial mission that both reboosts and refurbishes could theoretically restore capabilities that have degraded, though the complexity and cost of that kind of operation would be substantially higher than a straight reboost.
November 30 is when responses are due, and NASA will sort through whatever comes back to determine whether any commercial capability exists to make a Hubble rescue mission viable – a question that has been sitting unanswered since the shuttle’s retirement left the telescope with no scheduled visitors and no plan for what happens when the orbit runs out.
