Boeing can't even make an airplane without trouble and you think BoA could churn out a space shuttle? The space shuttle program was estimated to have cost $200B.
"Space Shuttle" was rhetorical, but yeah, they could churn out a space shuttle. They could buy SpaceX and use their engineers to do it. BofA has $2.3 TRILLION in assets.
The point is you can buy expertise. It's not like a bunch of bank tellers coded up a cloud platform. Nor would you have a regional branch manager running an aerospace program. You'd hire people that know how to do those things the same as any other expert at any other company.