NASA's historic Artemis mission to land the 1st woman on the moon delayed until 2026

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NASA has announced it is pushing back its flagship Artemis II expedition to September 2025 and its Artemis III moon-landing mission to September 2026 after testing uncovered safety issues.

NASA's Artemis campaign will land the first woman and person of color on the moon. (Image credit: NASA)

NASA leaders have announced they are pushing back two of the agency's flagship Artemis missions — Artemis II and Artemis III — amid safety concerns.

Artemis II, which will send four astronauts on a round trip around the moon and was originally scheduled for November 2024, is now slated to lift off in September 2025. The timeline for Artemis III, which plans to land the crew on the moon's south pole, has shifted to make sure lessons learned from Artemis II can be incorporated into Artemis III. Originally targeted for late 2025, NASA now aims to launch Artemis III in September 2026, agency leaders announced on Tuesday (Jan. 9).

"Safety is our top priority, and to give Artemis teams more time to work through the challenges with first-time developments, operations and integration, we're going to give more time on Artemis II and III," NASA administrator Bill Nelson said in a news briefing. 

Artemis IV — the planned first mission to a moon-orbiting space station known as Gateway — remains on track to lift off in September 2028, Nelson said.

Related: NASA shares incredible footage of Artemis I capsule hurtling through Earth's atmosphere after historic moon voyage

The primary reason for rescheduling the Artemis missions is to ensure crew safety, NASA representatives said. Artemis II will be the first flight test with astronauts aboard the Orion spacecraft and will require all environmental control and life support systems to be reliable. Recent testing has uncovered issues with a circuitry component responsible for air ventilation and temperature control, however. This, as well as a battery issue, will require more time to resolve than the original Artemis schedule allowed, according to a statement.

NASA is also investigating the unexpected loss of protective material from the Orion spacecraft's heat shield during its Artemis I mission, which launched in November 2022 and was completed in December. 

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"We've learned a lot since Artemis I," Nelson said in the statement. "We are returning to the moon in a way we never have before, and the safety of our astronauts is NASA's top priority as we prepare for future Artemis missions."

The astronauts selected for Artemis II and III include the first woman and person of color to land on the moon. 

"Artemis is a long-term exploration campaign to conduct science at the moon with astronauts and prepare for future human missions to Mars," Amit Kshatriya, the deputy associate administrator for the Moon to Mars Program in the Exploration Systems Development Mission Directorate, said in the statement. "That means we must get it right as we develop and fly our foundational systems so that we can safely carry out these missions." 

Sascha Pare
Sascha Pare
Trainee staff writer

Sascha is a U.K.-based trainee staff writer at Live Science. She holds a bachelor’s degree in biology from the University of Southampton in England and a master’s degree in science communication from Imperial College London. Her work has appeared in The Guardian and the health website Zoe. Besides writing, she enjoys playing tennis, bread-making and browsing second-hand shops for hidden gems.