“This is just not the right pathway forward,” Isaacman said.
A senior NASA official, speaking on background to Ars, noted that the space agency has experienced hydrogen and helium leaks during both the Artemis I and Artemis II prelaunch preparations, and these problems have led to monthslong delays in launch.
“If I recall, the timing between Apollo 7 and 8 was nine weeks,” the official said. “Launching SLS every three and a half years or so is not a recipe for success. Certainly, making each one of them a work of art with some major configuration change is also not helpful in the process, and we’re clearly seeing the results of it, right?”
The goal therefore is to standardize the SLS rocket into a single configuration in order to make the rocket as reliable as possible, and launching as frequently as every 10 months. NASA will fly the SLS vehicle until there are commercial alternatives to launch crews to the moon, perhaps through Artemis V as Congress has mandated, or perhaps even a little longer.
Is Everyone on Board?
The NASA official said all of the agency’s key contractors are on board with the change, and senior leaders in Congress have been briefed on the proposed changes.
The biggest opposition to these proposals would seemingly come from Boeing, which is the prime contractor for the Exploration Upper Stage, a contract worth billions of dollars to develop a more powerful rocket that was due to launch for the first time later this decade. However, in a NASA news release, Boeing appeared to offer at least some support for the revised plans.
“Boeing is a proud partner to the Artemis mission and our team is honored to contribute to NASA’s vision for American space leadership,” said Steve Parker, Boeing Defense, Space & Security president and CEO, in the news release. “The SLS core stage remains the world’s most powerful rocket stage, and the only one that can carry American astronauts directly to the moon and beyond in a single launch. As NASA lays out an accelerated launch schedule, our workforce and supply chain are prepared to meet the increased production needs.”
Solid Reasons for Changing Artemis III
NASA’s new approach to Artemis reflects a return to the philosophy of the Apollo program. During the late 1960s, the space agency flew a series of preparatory crewed missions before the Apollo 11 lunar landing. These included Apollo 7 (a low-Earth-orbit test of the Apollo spacecraft), Apollo 8 (a lunar orbiting mission), Apollo 9 (a low-Earth-orbit rendezvous with the lunar lander), and Apollo 10 (a test of the lunar lander descending to the moon, without touching down).
With its previous Artemis template, NASA skipped the steps taken by Apollo 7, 9, and 10. In the view of many industry officials, this leap from Artemis II—a crewed lunar flyby of the moon testing only the SLS rocket and Orion spacecraft—to Artemis III and a full-on lunar landing was enormous and risky.
The Artemis II crew rehearse a walkout from the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center.Photograph: Joe Raedle/Getty Images