NASA will load supercold liquid hydrogen and liquid oxygen into the SLS on September 21.

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NASA plans to undertake a cryogenic demonstration test for the Artemis mission on September 21.

Two previous attempts at launching the mission had to be aborted due to technical issues.  

The second attempt was cancelled because to a hydrogen fuel leak in the SLS core stage.

NASA is now targeting a September 27 launch date for the mission. 

NASA will load liquid hydrogen and oxygen into the SLS rocket during the test.

Even if this cryogenic test works as anticipated, Artemis 1's September 27 launch faces another challenge.

The FTS accreditation has expired. NASA's request to extend certification is pending.