This field of study is absolutely fascinating.
...But without the ability to ever get to them,...but the end goal is simply not possible to achieve.
But why would we ever want to? A fool's errand. We need to take our lessons from H.G. Wells...

It's still pretty cool to be able to learn more about them.It is certainly interesting. But without the ability to ever get to them, its a bit like being a dog looking at steaks grilling on the TV. You can salivate all you want, but the end goal is simply not possible to achieve.