OT
2 things:
Elon Musk has confirmed that Space X has acquired Xai;
Artemis fueling test has been scrubbed over minor leak in a hydrogen line at T-5min. Expect March launch.
Thanks, I was watching the live feed (which is usually a whole lot of nothing going on, with a couple of commentators) by chance right at the time they were noting the pressure fluctuations. This is a Shuttle-derived system (main engines liquid H with liquid O for an oxydizer, but needing SRBs to get it off the ground), and while that system was in use for decades, turnaround time was always pretty bad, and expensive.