NASA’s schedule currently puts the launch of Artemis III in 2027 and Artemis IV in 2028. Kshatriya said he was confident NASA, working the European Space Agency and Airbus, which builds the service module, will be able to fix the valve problem in time for Artemis IV. Manufacturing of the Artemis IV service module is largely complete.
“I’m pretty sure we’re going to need to, at a minimum, tweak the design to prevent the leak rate that we have, if not fundamentally change the way the valve works,” he said.
Valves are a common bugaboo on rockets and spacecraft. Nearly every US human spaceflight program has dealt with malfunctioning
→ Continue reading at Ars Technica