NASA has delayed the launch of its mission to send humans around the Moon for the first time since the Apollo missions.
NASA had hoped to launch the mission as early as next week.
But a full two-day dress rehearsal of the launch was terminated in the last 5 minutes this week due to the detection of a hydrogen leak in the rocket.
The test also revealed issues with communication systems with the crew capsule.
Dr Kate Ferguson, is the Associate Director of Strategic Projects at the ANU Institute for Space. She spoke to ABC NewsRadio’s Rhiannon Elston.