Science

Robotic tug LINK to save Swift from reentry

robotic tugboat – A private spacecraft called LINK is set to launch July 2 to pull NASA’s Swift space telescope back to a safer orbit after stronger solar activity increased atmospheric drag. The rescue, chosen by NASA in September 2025, will test a never-before-done robotic “t

At 5:09 a.m. EDT on July 2, a new kind of space mission will try to grab a decades-old telescope before gravity takes it completely apart.

A private spacecraft called LINK is scheduled to launch from the Marshall Islands after a two-day weather delay. with the goal of rescuing NASA’s Swift space telescope from a fiery death in Earth’s atmosphere. Swift—formally the Neil Gehrels Swift Observatory—launched in 2004 to study gamma-ray bursts and other cosmic events. It has been enormously successful and is still making new discoveries.

The risk now is physical and urgent: all satellites eventually succumb to gravity. and most burn up in Earth’s atmosphere before they reach the ground. But in early 2025, NASA scientists realized Swift was losing altitude faster than expected. Strong solar activity starting in 2024 had given Earth’s atmosphere an energy boost. expanding it slightly and increasing drag on objects in low orbits. The extra drag means Swift would reenter and break up sometime in mid-2026 if nothing were done.

NASA’s response is what makes this moment different. Instead of waiting for the inevitable, scientists decided to mount a robotic rescue mission—something never done before. The plan is to launch a simple spacecraft equipped with robotic arms to grab Swift and pull it into a higher orbit.

In September 2025, NASA selected private U.S. spaceflight company Katalyst to carry out the mission, giving it just nine months to get ready.

From inside the control loop, the mission will look more like careful docking than a dramatic chase. Operators will first spend several weeks ensuring LINK is working as intended. Then the spacecraft will spend about a month slowly approaching Swift and sending images back to Earth. Mission team members will use those images to pick the best places to grab the descending spacecraft.

Once LINK has Swift in its clutches, it will fire gentle thrusters to slowly raise the orbit over a few months. The target is Swift’s original altitude—about 600 kilometers.

That technical choreography is only part of what’s at stake. Swift’s value is tied directly to how quickly it can react. The observatory sits in a unique niche among NASA’s telescopes. says principal investigator Brad Cenko. an astrophysicist at Goddard Space Flight Center in Greenbelt. Md. True to its name. Swift can swivel quickly to follow up on sudden cosmic explosions almost anywhere in the sky within minutes. Hubble, by contrast, takes at least a day to repoint. “It really is NASA’s ‘first responder,’” Cenko said in an email.

As the rescue timeline tightened, Swift’s operators began changing how the spacecraft observes. Since December, Swift’s operations team has been adjusting its observing strategy to reduce drag and slow its descent. Currently, it’s not taking science data at all.

The payoff, if LINK succeeds, could be more than survival—it could be time. Once Swift is back in its new orbit, the observatory will need a reboot. Return to science could take another month or more, but after that, Swift could have another decade of observations ahead.

Cenko described the mood behind the mission as anticipation turned into urgency: “Looking forward to our post-boost era, we are really excited about all the discoveries Swift could unlock.”

If the rescue works, it may also change how NASA thinks about aging observatories in general. The robotic technique tested on Swift could be used to boost other space telescopes, including the Hubble Space Telescope.

For now, though, the mission comes down to a single narrow window—before mid-2026—and to a robotic tugboat that must do its job precisely, gently, and on time.

Swift space telescope LINK spacecraft Katalyst NASA rescue mission satellite reentry low Earth orbit drag solar activity gamma-ray bursts Hubble boosting technology

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