earth moon route

the problem with sending rockets 

from earth to the moon and back to earth 

is that it takes too much rocket fuel 

if spaceplanes launch vertically as rockets from earth 

and travel to the moon 

and then return from the moon to earth 

and land as spaceplanes on runways on earth 

then those spaceplanes don't need fuel land 

which rockets do since rockets brake while landing vertically 

or if rockets that return from the moon to earth 

are refueled in earth orbit by reusable tanker rockets 

then the refueled rockets have enough fuel to land vertically on earth 

and if the moon is industrialized 

then a maglev launcher can be built on the moon 

that launch spaceplanes towards earth 

so that spaceplanes use fuel to travel as rockets from earth to the moon 

and those spaceplanes 

are then launched by a maglev tracks towards earth 

and land as spaceplanes on runways on earth 

any of the different chemical components of moon dust 

could be turned into plasma and be used as reaction mass 

but oxygen from moon dust would need the least energy 

to be turned into pasma and used as reaction mass by rockets 

if that reaction mass is turned into plasma 

by nuclear micro reactors onboard the rocket 

or if the rocket has extremely powerful batteries 

that are recharged with solar power on the moon 

then the rocket could turn oxygen from moon dust into plasma 

as reaction mass 

or if solar power satellites use lasers to transfer energy 

to receivers on the rocket 

so that the rocket could turn oxygen from moon dust into plasma 

as reaction mass 

any of the chemical components of moon dust 

could be turned into plasma by rockets and be used as reaction mass 

but silicon, calcium, iron, aluminum, magnesium and titanium 

would need more power than oxygen 

to be turned into plasma by a rocket engine