Relax, everyone. This is a non-story; it isn't going to happen, and no-one seriously expects it to.
We're having a referendum in September on whether to separate from the UK and become an independent nation. The UK government has woken up - very late - to the realisation that it's quite likely to lose, and consequently will also lose its only nuclear submarine base, 90% of its oil revenue, and probably its permanent seat on the UN security council. Consequently they're panicking and offering us all sorts of unlikely bribes. The spaceport won't happen because
- If we vote 'yes', it's not going to be an urgent priority of the Scottish government;
- if we vote 'no', this and all the other promised bribes will be quietly forgotten.
So relax. The fact that there's no money and no commercial use for it, and that we're too far from the equator, doesn't matter; no-one seriously intends to build it. It's a media stunt, pure and simple. It isn't going to happen.