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Wow, what a week for SLS! Every mission had a part moved or modified.

Artemis III:
The core has received its first RS-25, and its second is underway, along with one (or both) Center Center SRB segments stacked. The spacer also had its forward ring welded on.

Artemis IV:
Not a huge update, but the boat-tail was finally shipped to KSC to be mated with the engine section.

Artemis V:
Thanks to @ThePrimalDino, we can confirm that two (assuming one of the barrels is the already-confirmed one) exist for Artemis V, along with the forward skirt!

Artemis VI:
The core had its first ring welded together! Additionally, thanks to photos from @ThePrimalDino, Michoud has begun assembling the engine section, which appears to be half-welded, with parts lying nearby ready to be added, and it should be completed soon.
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