One vital technology to space exploration will be superconduction.  Superconductors will be used for our high speed rail transport… space craft shielding and energy storage.
Superconducting is what we call an electrical conducting material that has zero resistance.  
Some materials are electrical insulators…they do not easily allow the flow of electricity.
Other substances through which you pass a current more easily will be electrical conductors.  
These are usually metals…which have loosely attached electrons that can move easily through the wire.  
At room temperature almost all of these have energy loss…in the form of heat.  This resistance to the flow of electricity was used to create the first electric lights.  
Copper wires with low resistance would bring the electrons into a bulb where there was a near vacuum with no oxygen.
 The copper wire was attached to a coil of tungsten…tungsten can resist heat better than any other element.  Its melting point is 3,422 Celsius.  
The coil of tungsten would get…

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