NASA has announced the discovery of problems in the helium supply system of the upper stage of the SLS rocket. These problems virtually rule out the possibility of launching the Artemis II mission in March.
On February 19, NASA specialists conducted a wet dress rehearsal for the Artemis II launch, during which the SLS rocket tanks were completely filled with liquid hydrogen and oxygen, followed by a practice countdown. The operation was a success, raising hopes that the first manned flight to the Moon since 1972 will take place in March.
However, the excitement of space enthusiasts was short-lived. On February 21, administrator Jared Isaacman reported the discovery of malfunctions in the helium supply system on the upper stage of the SLS rocket. It is necessary to maintain pressure in the fuel tanks. The system worked normally during the wet rehearsal. However, after its completion, when engineers began the standard resealing operation, they were unable to ensure adequate helium flow.
Engineers are currently investigating the possible source of the problem. They are also analyzing data from the Artemis I mission, during which similar malfunctions were noted.
However, whatever the reasons for the problems, they make it virtually impossible to launch Artemis II in March. In the near future, the SLS will be returned to the Vertical Assembly Building, after which engineers will begin repairs. NASA hopes to resolve the issue by April, when the next ballistic windows for flights to the Moon will open.
