Side-by-side

[George K]

https://www.space.com/spacex-starships-sn9-sn10-on-pad-same-time
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SpaceX has two Starship prototypes on the pad at the same time

It looks like a scene from science fiction: Two gleaming silver rocket ships standing side-by-side under the Texas sun awaiting their turn to fly.

But the shiny, finned SpaceX rockets — Starship SN9 and SN10 prototypes — actually exist and met at the pad for the first time Friday (Jan. 29) at the company's South Texas facility near Boca Chica Village. The SN10 vehicle, SpaceX's latest in a line of new reusable Starship prototypes, rolled out to the pad as its SN9 counterpart awaits its own test flight, which could launch as soon as Monday (Feb. 1).

[Axtremus]

Is it really wise to put these two prototypes so close together?
What if a failure drops one on top of the other?