Eris rocket debut signals new chapter for Australia's launch ambitions

Eris rocket debut signals new chapter for Australia's launch ambitions
by Simon Mansfield
Sydney, Australia (SPX) Jul 30, 2025
Gilmour Space Technologies has conducted the inaugural test launch of Eris, Australia's first domestically developed orbital rocket, marking a pivotal moment in the nation's path toward sovereign space access and small satellite launch services.

The 23-meter-tall, 30-tonne Eris rocket utilized innovative hybrid propulsion to lift off from the Bowen Orbital Spaceport in North Queensland, achieving approximately 14 seconds of flight before an early termination. Despite the brief duration, the mission verified key systems and infrastructure developed by Gilmour Space.

"Space is hard," stated CEO Adam Gilmour. "SpaceX, Rocket Lab and others needed multiple test flights to reach orbit. We've learned a tremendous amount that will go directly into improving our next vehicle, which is already in production."

He added, "Getting off the pad and into flight is a huge step forward for any new rocket program. This was the first real test of our rocket systems, our propulsion technology, and our spaceport - and it proved that much of what we've built works."

The launch proceeded safely, with no injuries or environmental impact reported. Gilmour emphasized the broader implications: "Only six nations currently launch to orbit regularly - and just a handful are developing sovereign capability to join them. We've now taken a big step toward joining that group."

The TestFlight 1 campaign marked several national firsts: the first integrated launch of a fully Australian-built orbital-class rocket, and the first use of a licensed commercial orbital spaceport in the country. All core systems - including propulsion, avionics, software, and infrastructure - were designed and manufactured by Gilmour Space using a lean budget compared to international peers.

"Clearing the tower was a major milestone for our team. It showed that Australia can design, build, and launch rockets right here at home," Gilmour said.

The campaign required coordination with multiple regulatory and operational agencies, including the Australian Space Agency, CASA, Airservices Australia, and maritime authorities. Gilmour Space noted that data from ignition, lift-off, thrust generation, and telemetry systems validated the performance of critical components up to the flight anomaly. Engineers are now analyzing data to determine the cause and apply insights to the next rocket, already under construction.

Supported by a team of over 200 staff and 500 Australian suppliers, the mission highlights national momentum in space innovation. Gilmour Space aims to launch again in the coming months, advancing its goal to offer affordable and flexible launch options to meet rising global demand.

"Every test, especially the first, is a learning opportunity," said Gilmour. "Congratulations to our talented team for getting us this far. Onward to TestFlight 2."