NASA Narrows Artemis II Moon Flyby Launch Target to April 1–2 After Flight Readiness Review
After completing a flight readiness review in which all teams were polled "go," NASA narrowed Artemis II's launch target to a primary window on April 1 at 6:24 p.m. ET with a backup opportunity April 2 at 7:22 p.m. ET for the 10‑day crewed lunar flyby. Ground teams repaired a helium‑system seal discovered after a February fueling test and plan to roll the Space Launch System and Orion back to Launch Pad 39B around March 19 with no additional wet dress rehearsal; the crew will enter quarantine March 18 and travel to Kennedy Space Center on March 27, though officials say remaining work in the Vehicle Assembly Building and at the pad continues.
📌 Key Facts
- NASA completed the Artemis II flight readiness review and polled all teams "go" to proceed toward launch, while noting remaining pre-rollout work in the Vehicle Assembly Building (VAB) and at Launch Pad 39B.
- The agency narrowed the launch target to April 1 with a primary time of 6:24 p.m. ET and a backup opportunity at 7:22 p.m. ET on April 2 (replacing an earlier broader April 1–6 window).
- Rollback/rollout of the Space Launch System and Orion to Launch Pad 39B is scheduled for March 19 after repairs in the VAB to address fuel and helium leaks.
- A helium-system problem discovered after a February fueling test was repaired by replacing a seal.
- NASA officials confirmed they will not perform another wet dress rehearsal; the next time the rocket is fully tanked will be on an actual launch attempt.
- Artemis II is planned as a 10-day crewed mission that will fly around the moon and return to Earth.
- Crew timeline: astronauts will enter quarantine at Johnson Space Center beginning March 18 and are scheduled to travel to Kennedy Space Center on March 27.
- Artemis II Mission Management Team chair John Honeycutt noted historical new-rocket failure statistics but said he believes Artemis II is in "a much better position" and not a 50–50 proposition.
📊 Relevant Data
The total projected cost of NASA's Artemis program through 2025 exceeds $93 billion, with each Space Launch System flight estimated at roughly $2 billion or more.
Trump's 2026 budget gives Artemis a major facelift — Space.com
NASA's 2025 astronaut candidate class is the first in over 40 years without any Black recruits, despite women outnumbering men in the class for the first time.
NASA astronaut class appears to be first without Black recruits in 40 years — Yahoo News
Recurring hydrogen leaks in the tail service mast umbilical have been a primary cause of delays for Artemis II, similar to issues that delayed previous tests.
With Artemis II facing delays, NASA announces big structural changes to the lunar program — The Conversation
📰 Source Timeline (3)
Follow how coverage of this story developed over time
- NASA completed the Artemis II flight readiness review and polled all teams as "go" to proceed toward launch, pending remaining pre-rollout work.
- The agency is now targeting a specific primary launch time of 6:24 p.m. ET on April 1, with a backup launch opportunity at 7:22 p.m. ET on April 2, rather than a broader April 1–6 window.
- Rollback of the Space Launch System and Orion to Launch Pad 39B is scheduled for March 19, after repairs of fuel and helium leaks in the Vehicle Assembly Building.
- NASA officials confirmed they will not perform another wet dress rehearsal; the next time the rocket is fully tanked will be on an actual launch attempt.
- Artemis II Mission Management Team chair John Honeycutt publicly discussed generic new-rocket failure statistics (roughly one-in-two historically) but said he believes Artemis II is in "a much better position" and not a 50–50 proposition.
- Confirms Artemis II will be a 10‑day mission around the moon and back, rather than nine days.
- Clarifies that the helium‑system problem discovered after the February fueling test was repaired by replacing a seal and that ground teams plan to roll the rocket back to the launch pad on Thursday.
- Provides a detailed crew timeline: quarantine at Johnson Space Center beginning March 18 and travel to Kennedy Space Center on March 27.
- Includes on‑the‑record quote from Lori Glaze that all teams in the flight readiness review polled 'go' to launch Artemis II around the moon, while stressing remaining work in the VAB and at the pad.