Gilmour Space Technologies postponed its historic rocket launch on Thursday. The rocket was set to carry a jar of Vegemite into orbit. However, a ground system error forced the delay.
#TestFlight1 Update:
— Gilmour Space (@GilmourSpace) May 14, 2025
𝗡𝗼 𝗹𝗮𝘂𝗻𝗰𝗵 𝘁𝗼𝗱𝗮𝘆. Our team identified an issue in the ground support system during overnight checks. We’re now in an extended hold to work through it.
Our next target is the Friday morning launch window. Stay tuned for updates. pic.twitter.com/4BeND79hKw
What Caused the Delay?
According to the company, the issue came from an external power system used during system checks. Communications head Michelle Gilmour explained, “The issue was with an external power system we use during system checks.”
She added, “We’ve identified the fix but ran out of time to implement it and fuel the rocket within today’s launch window.” Therefore, the launch was moved to Friday. Fortunately, the team still has several days left in the launch window.
A First for Australia
If the mission succeeds, it will mark the first time an Australian-built rocket reaches orbit from Australian soil. The Eris rocket stands 23 metres tall. It is designed to carry small satellites into low-Earth orbit. However, for this test, it will carry only a jar of Vegemite—an iconic Australian spread.
CEO Sets Modest Goals
Meanwhile, CEO Adam Gilmour made it clear that the team isn’t expecting a perfect flight. “If it orbits Earth, I would probably have a heart attack, actually, because I’ll be so surprised, but deliriously happy,” he said.
He continued, “We’re going to be happy if it gets off the pad – 10, 20, 30 seconds of flight time: fantastic. So orbit is just not in the realm of my belief right now, even though it’s theoretically possible.”
Rocket Design and Future Plans
The Eris rocket can carry between 100 and 200 kilograms. It weighs 30 tonnes when fueled. It uses a hybrid engine that burns solid fuel and liquid oxidiser. Moreover, the company has attracted private investment. Its backers include venture capital firm Blackbird and pension fund HESTA.
Currently, Gilmour Space employs 230 people. Looking ahead, the company plans to begin commercial launches by late 2026 or early 2027. After that, it hopes to increase revenue and expand quickly.