National Aeronautics and Space Administration · Space Launch System (SLS)

Launch Date
Wednesday, Apr 1, 2026 • 22:35 GMT+0
Rocket
Space Launch System Block 1
Launch Pad
Launch Complex 39B — Kennedy Space Center, FL, USA
Launch Window
22:24 GMT+0 — 00:24 GMT+0
Probability
90%
Current Stage
Launch Window Open
Countdown active — T-0 within the launch window
3 of 9 stages complete
39%
See the full stage-by-stage timeline with timestamps
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The National Aeronautics and Space Administration is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research. NASA have many launch facilities but most are inactive. The most commonly used pad will be LC-39B at Kennedy Space Center in Florida.
