Superconductivity

A superconductor is a material that can conduct electricity or transport electrons from one atom to another with no resistance.

Unfortunately all know materials so far have to be cooled to very low temperatures to work.

superconductivity occurs when a current is passed through a superconducting material, creating a magnetic field, this can be very useful for energy storage and for super strong magnets.

superconductivity has particular applications for space due to the low temperatures.

Luna use

Even on our Moon superconductivity could be used in the permanent shadows of craters when the temperature is constantly very low, also during the 2 week luna nights again when the surface temperature drops to minus 173 C (100.15 Kelvin) as mercury barium calcium copper oxide (HgBa2Ca2Cu3O8) becomes a superconductor at around 133 K.

One concept is to use superconducting magnets as a way to launch materials from the luna surface into space using a magnetic rail gun.