Someone is about to refuel a satellite... 22,000 miles up

Gas stations in space.

It sounds like science fiction. But this summer, a 660-pound robot is going to fly 22,000 miles above Earth, dock with a U.S. Space Force satellite, and pump hydrazine into its tanks. Then it will refuel itself from an orbiting fuel depot built by a different company. Then it will do it all again on a second bird.

Let me explain why this matters more than you think.

The company is Astroscale U.S. Its spacecraft is called Provisioner. And the mission, backed by the Space Force through a contract with Space Systems Command, will mark the first time anyone has refueled an active military satellite in orbit.

Here's the problem it solves. Right now, when a satellite runs out of fuel… it's dead. A $500 million bird becomes a piece of junk. Operators spend years hoarding every last drop of propellant because once it's gone, there's no way to get more. The Space Force calls this "maneuvering with regret." Every time you dodge debris or reposition for a mission, you shorten your satellite's life.

But if you can refuel? Everything changes.

Satellites live longer. They move more freely. They cost less per year of service. And the Pentagon gets something it badly wants… the ability to reposition its most important eyes and ears without worrying about running dry.

Now, I know the skeptics are already raising a hand. "Sounds great in theory. Can they actually do it?" And it's a fair question. Docking with a satellite that wasn't designed to be serviced is incredibly hard. The tolerances are tiny. The speeds are huge. And there's no second chance if you crash into a billion-dollar asset.

But there's precedent. Northrop Grumman proved you could extend a satellite's life with its Mission Extension Vehicle flights. China launched its own test refueler, Shijian 25, in January. And Astroscale's partner, Orbit Fab, will fly a fuel depot on the same rocket… creating the first end-to-end refueling chain in orbit. Client, servicer, and depot. All in one mission.

And Astroscale is not alone. Next month, a small Arizona startup called Katalyst Space will try to dock a robot with NASA's dying Swift telescope and push it to a higher orbit. That's a $30 million mission to prove the same core idea: you don't have to throw away your space hardware when it gets old.

Put these together and you see the outline of a whole new market. Not building satellites. Not launching them. Keeping them alive.

Morgan Stanley sized the broader space economy at $1.8 trillion by 2035. In-orbit servicing, refueling, and debris removal sit at the heart of that growth. Because the number of active satellites in low Earth orbit is doubling every two years. And at that pace, you can't just keep launching new ones. You have to maintain what's already up there.

This summer, we find out if the plumbing works.

SpaceX came within 40 seconds of launching the first Starship V3 yesterday before a stuck hydraulic pin on the launch tower killed the countdown. The vehicle was fully fueled on Pad 2 at Starbase, Texas… new engines, new pad, new everything. Elon Musk said on X that if the fix holds, they'll try again tonight at 6:30 p.m. ET. Flight 12 is the first Starship test in seven months and a critical step for the Artemis lunar lander, Starlink deployment, and orbital data centers. NASA needs this rocket to work. So do investors watching the IPO filing.

During the Starship countdown, SpaceX quietly dropped a stunner: Fram2 mission commander Chun Wang will fly the first crewed Starship trip past Mars. The two-year round trip includes a Moon flyby along the way, with Dennis and Akiko Tito also aboard for the lunar leg. No launch date was given… and Starship still hasn't orbited Earth. But Wang, a Chinese-born Bitcoin mining pioneer who became the first known BTC holder to fly in space last year, called from Bouvet Island in the South Atlantic to confirm. The ambition is breathtaking. The timeline is hazy.

Redwire reported Q1 2026 revenue of $97 million… up 57.9% from a year ago. Its contracted backlog hit a record $498.1 million, up 71% year over year. Space segment revenue came in at $52.7 million, with defense tech adding $44.3 million after the Edge Autonomy acquisition. The company also won a spot on the Space Force's $1.8 billion Andromeda contract for next-gen GEO reconnaissance satellites. Redwire makes solar arrays, docking systems, and runs nine payload facilities on the ISS. Full-year guidance: $450 million to $500 million in revenue.

In late June, the very last Pegasus XL rocket will fly.

It won't launch from a pad. It will drop from the belly of an old L-1011 airliner at 39,000 feet over Kwajalein Atoll in the Pacific. Then it will fire its solid-fuel motors and send a small robot called LINK into orbit.

LINK's job is simple but extraordinary. It needs to catch NASA's Swift Observatory… a 21-year-old gamma-ray telescope that is slowly falling back to Earth. Swift has no engines. It can't save itself. And if nothing happens, it hits atmosphere sometime between October and January.

The startup behind LINK is Katalyst Space Technologies, an Arizona company that won a $30 million NASA contract for this mission last September. They went from contract to launch-ready hardware in under nine months. NASA is inviting press to Wallops Flight Facility on June 17 to see the rocket before it ships.

But here's what makes this interesting beyond one telescope. If LINK works, it proves that cheap, fast robots can extend the life of aging space hardware. That's the same idea behind the Astroscale refueling mission we covered in today's Big Bang. Two very different companies. Same thesis: don't throw away what's already in orbit.

The in-orbit servicing market has been stuck in demo mode for a decade. This summer, it either graduates… or keeps waiting.

We'll know by July.

Today's Big Bang is about the first military satellite refueling mission. But how does it actually work? Let me explain.

Think of your car. You pull up to a pump. You open the cap. You fill the tank. Simple. Now imagine your car is flying at 7,000 miles per hour. The gas station is also flying. And if you miss by an inch, you destroy both.

That's orbital refueling.

The process has three steps. First, the servicer spacecraft has to find the client satellite and match its speed and orbit. This is called rendezvous and proximity operations… or RPO. It takes days of careful thruster burns to get close.

Second, the servicer has to dock. Most satellites were not built with refueling ports. So the servicer either uses a custom adapter or grabs the satellite's existing hardware. Astroscale's Provisioner carries a refillable hydrazine tank and a docking arm designed for this exact job.

Third, the fuel has to transfer. In space, there's no gravity to pull liquid down into a tank. So the servicer uses pressure to push fuel across. The whole time, both vehicles are flying in formation at orbital speed.

In other words, it's like changing a tire on a car doing 200 miles per hour… while the mechanic is also doing 200.

And then comes the twist. After refueling one satellite, Astroscale's spacecraft will fly to an Orbit Fab depot… a fuel tank already parked in orbit… and refill its own tanks. Then it goes and refuels a second Space Force bird.

That's a supply chain. In orbit. With three separate vehicles.