Watch NASA’s crucial fueling test of Artemis 1 moon rocket for free

NASA will conduct a crucial fueling test of its Artemis 1 moon rocket today (Sept. 21), and you can watch it live.

Technicians are scheduled to begin loading supercold liquid hydrogen and liquid oxygen propellants into Artemis 1’s Space Launch System (SLS) megarocket today at 7:15 a.m. EDT (1115 GMT). Watch it live here at Space.com, courtesy of NASA, or directly via the space agency.

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