I was watching a show the other day on binary stars.
They are supper compressed and have a hard outer shell over them.
SUPER dense too, a 1cm cube of the star matter would weigh 800billion pounds! a sugar cube, would weight as much as 800 cargo carriers.
The outer shell,because an electron collapses into a proton (Something like that? sorry) makes it 10billion times harder than steel.
It makes you wonder, we know if this stuff, but have been unable to reverse engineer it.
We have "idea's" using antimatter fuel in ships that could archive speeds near the speed of light.
But we are still just using fossil fuels, and our biggest source of energy is nuclear, and everyone is scared of it.
Just reading and watching this kind of stuff, makes you really realize how important we think we are, but really how little we actually matter.