NASA officials declined to clarify the Artemis II launch window during a press briefing Friday, saying only that the agency would provide an update "when details are confirmed." The ambiguity between April 2 and April 8 — the two dates previously floated — remains unresolved. The briefing, originally expected to address the timing directly, instead focused on Orion crew safety systems and thermal protection updates.

Sources at Cape Canaveral, speaking on background, say the Eastern Range — the federal infrastructure that coordinates launch windows across military and civilian spaceflight — has not formally issued a new range certification for the April 2 slot. The range certification process includes coordination with Department of Defense tracking assets, which in the current geopolitical environment involve additional deconfliction procedures related to the Iran conflict's effect on Atlantic tracking station coverage.

The Artemis II mission — a crewed lunar orbit flight — is the first crewed US lunar mission since Apollo 17 in 1972. The program's delays have been structural rather than surprising: the uncrewed Artemis I flight in 2022 experienced thermal protection issues that required redesign before crew certification. The current hold is on the crew's capsule, not the launch vehicle. NASA administrator Bill Nelson did not take questions at Friday's briefing.

— REPORTER'S NOTE: The Artemis II ambiguity is unchanged from the prior edition. No new developments warrant a fuller treatment. This brief will be updated when NASA provides a definitive update on the April window. [1] [2].