What happened during the SLS wet dress rehearsal?

Teams observed hydrogen levels trending toward limits near T-5 minutes during fueling, prompting a controlled stop. The scrub protected hardware and generated data on cryogenic handling. Engineers will review measurements, isolate the source, apply fixes, and may repeat tanking to verify margins before confirming NASA Artemis 2 for the March window.

Is the March launch window confirmed for NASA Artemis 2?

Not yet. NASA is assessing early March opportunities, including March 6–11, but final approval depends on resolving the leak, ground readiness, and range availability. A clean retest or strong engineering review is needed. If timing slips, teams could roll back, which would shift milestones and workloads into later dates.

How does this affect Swiss investors?

Impact is mostly timing related. Schedule shifts can move revenue recognition for space-adjacent suppliers, test facilities, and insurance lines with USD exposure. Swiss portfolios should watch disclosure on order timing, utilization, and risk reserves. Treat NASA Artemis 2 as an event catalyst and size positions to handle possible retests or a rollback scenario.

What signals should I watch before the next launch attempt?

Look for NASA engineering updates on leak root cause, any repair work, and a successful tanking repeat with stable hydrogen readings. Monitor flight readiness reviews, crew status, and ground software updates. A formal go for the March window and range confirmation would be the strongest signals that NASA Artemis 2 is ready to proceed.

Global Market Insights

NASA Artemis 2 Today, February 04: March Launch Window After Fuel Test

ByHuzaifa Zahoor February 4, 2026February 4, 2026

NASA Artemis 2 moved to a March launch window after the SLS wet dress rehearsal hit hydrogen leak limits near T-5 minutes. This Artemis II delay pushes the earliest crewed lunar flyby to dates under review in early March. For Swiss investors, the shift changes milestone timing and workload phasing across space supply chains. We break down what the test showed, why March still works, and how this affects risk, exposure, and portfolio planning in CH.