How much can we justify spending?

[Brakie]

We're so far off topic now nobody will notice anyway, Les.

Space ships have wings because the wings come in the fighter plane kits that are the basis for the kit-bashes! Seriously, because Hollywoody doesn't know squat about physics.

What do rockets push against? Third Law of Motion- every action has an equal and opposite reaction. We know this to be true because it applies to everything that happens in space right now.

Maybe with our current level of knowledge but,who can say what a advance life form may know about physics ?

If the civilian and Government reports are to be believed these "unknown crafts" are far beyond anything we have.