Northrop robot swaps in to keep Optus satellite working until 2033

A Northrop Grumman spacecraft that has been keeping an Optus communications satellite alive has detached and moved away, making room for a new robotic servicing system. The Mission Extension Vehicle, or MEV, unplugged from the back of the Optus satellite after more than a year of holding it in the correct orbital position, the company said on August 12, 2026.

The Optus satellite, launched in 2009 with a 15-year design life, is the direct beneficiary. If the follow-on mission succeeds, the satellite could continue operating and generating revenue for another six years. Satellites typically fail when they run out of fuel for station-keeping, not because their electronics break, so life-extension missions can keep expensive assets working far beyond their original plans.

In July 2026, four new Northrop spacecraft launched on a SpaceX Falcon 9 rocket. One is the Mission Robotic Vehicle, or MRV, a satellite with two advanced robotic arms developed with DARPA, the U.S. military research organization. The other three are Mission Extension Pods, or MEPs, which are smaller modular propulsion units. All four are now heading toward targets about 27,000 miles above Earth.

In 2027, the MRV will use its robotic arms to attach one MEP to the Optus satellite. Northrop says the goal is a paradigm shift toward sustainable space with resilient infrastructure for repairs, life extension, upgrades and maintenance, according to Cassie Wong, Northrop's director of logistics and servicing. The MRV itself is designed to be refueled in orbit, a proof of concept for future servicing norms.

Two MEVs are currently in orbit, launched in 2019 and 2020, and have provided 10 years of combined life extension to three customers: two Intelsat spacecraft and the Optus satellite. MEV-1 will now wait in a parking orbit for another customer, while MEV-2 remains attached to its Intelsat satellite until 2030. The MRV represents an evolution of the business model because satellite operators buy and own the MEPs, freeing the MRV to service more vehicles at lower cost.

Autonomous approach and docking are technically demanding, since both vehicles move at thousands of miles per hour. The MEVs use a docking probe to plug into thruster nozzles, while the MRV will attach MEPs with robotic arms. Wong said the MRV could also serve defense customers and low Earth orbit assets, and the startup Katalyst Space is pursuing a similar mission to extend the life of a NASA space telescope after malfunctions left it tumbling last month.