Fixing Satellites in Orbit: SpaceX, Northrop, and the Dawn of Robotic Space Servicing

From Kathmandu, satellites are invisible infrastructure — they carry the broadcast feeds, weather data, and connectivity that the Himalaya depends on, quietly, until something goes wrong. What often goes wrong isn't a satellite breaking; it's a satellite running out of fuel while every other system on board still works fine, worth hundreds of millions of dollars and rendered useless by an empty tank. I checked the launch details, the servicing-mission history, and the market forecasts against primary sources before writing this.

A new robotic servicer joins an already-proven field

On July 21, 2026, SpaceX launched Northrop Grumman's Mission Robotic Vehicle (MRV) from Cape Canaveral's Space Launch Complex 40 on a Falcon 9, with the booster expended to reach geostationary transfer orbit. The roughly 3,000 kg spacecraft carries the Robotic Servicing of Geosynchronous Satellites (RSGS) payload — built by the Naval Research Laboratory and funded by DARPA — equipped with two fully articulated robotic arms, and can carry up to three Mission Extension Pods (MEPs) at launch. Over its planned 15-year operational life, the MRV is designed to install detachable MEPs on up to thirty different satellites, extending each one's usable life by attaching a self-contained propulsion module rather than permanently merging with the host spacecraft. Its capabilities span inspection, relocation, life extension, debris removal, satellite upgrades, and in-space assembly.

What came before: MEV-1 and MEV-2

The RSGS program that powers the MRV traces back to 2016, when DARPA began funding it with SSL/Maxar as the initial commercial partner; Maxar exited in 2019, and Northrop's SpaceLogistics subsidiary took over development in 2020. Northrop's earlier Mission Extension Vehicles proved the underlying docking technology works: MEV-1 completed the first-ever docking between two commercial satellites on February 25, 2020, attaching to Intelsat 901 at 2:15 a.m. ET. MEV-2 followed on April 12, 2021, docking directly with Intelsat 10-02 in its operational geostationary orbital location at 1:34 p.m. EST. Each MEV extends a client satellite's life by at least six years by permanently attaching and taking over station-keeping and attitude control — Intelsat has ordered two, and Optus and SES have ordered others. The MRV's MEP-based approach is the next step: rather than one vehicle serving one satellite permanently, one MRV can serve many satellites sequentially by dropping off pods.

The wider field: debris removal and refueling

Servicing isn't limited to life extension. Japan's Astroscale flew ELSA-d, the first commercial debris-removal demonstration, launching March 22, 2021 and proving rendezvous, proximity operations, and magnetic capture — though four of its eight servicer thrusters failed during the mission, contributing to a controlled de-orbit rather than an unqualified success. Astroscale followed with ADRAS-J, launched February 18, 2024, in what the company describes as the world's first attempt to safely approach, characterize, and survey a large piece of debris — a Japanese H-2A rocket upper stage — via close-proximity operations. On the refueling side, Orbit Fab has developed the RAFTI standardized refueling interface, backed by a $28.5 million Series A in April 2023, with the U.S. Space Force accepting RAFTI as a valid military-satellite refueling interface in August 2024; its Tetra-5 refueling demonstration is targeting 2026 but hasn't yet flown. Europe's entry is ESA's ClearSpace-1, an €86 million contract awarded in December 2020 to Swiss firm ClearSpace SA, though its target debris object was later changed to a piece of the PROBA-1 mission and its launch date has slipped well past the original 2025 plan. Analysts at NSR have forecast $14.3 billion in in-orbit-servicing revenue through 2031, with life extension as the largest segment and debris removal the fastest-growing at a 38% CAGR — up from an earlier 2021 NSR estimate of $6.2 billion by 2030.

The view from Kathmandu

The MRV's launch three days before this piece was written is a reminder that the infrastructure keeping South Asia connected to weather data and broadcast feeds is aging in orbit right now, one depleting fuel tank at a time — and that the industry racing to fix that, worth billions in projected revenue by the analysts tracking it, is still working through real technical setbacks like ELSA-d's thruster failures and ClearSpace-1's schedule slips, even as its headline capabilities keep expanding.