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February 21, 2026

Nasa may roll back Artemis II rocket launch after helium flow discovery

Agency statement comes one day after announcement of 6 March target for astronauts’ mission to circle the moon

Nasa may roll back Artemis II rocket launch after helium flow discovery

TL;DR

  • Nasa is considering rolling back the Artemis II rocket and Orion spacecraft due to an interrupted helium flow.
  • The interrupted helium flow is in the interim cryogenic propulsion stage and is required for launch.
  • This discovery will likely impact the March launch window for the Artemis II mission.
  • The Artemis II mission plans to send four astronauts on a 10-day trip around the moon.
  • The mission will test systems for future deep-space exploration and is preparation for Artemis III in 2028.

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