magnetic levitation bearing it will be appreciated that in some embodiments such as when rotational friction is less critical that the ring magnets may be replaced by a circular array of magnet sections which may emulate a complete ring magnet such bearing is placed in closest proximity and slightly higher than the center of gravity 6010 of the complete micropropulsion system assembled with the microsatellite components necessary for wireless control and telemetry as well as power supply the bearing is realized by two ring magnets 6020 a and 6020 b with axial polarization and opposite polarity with typical magnetic field lines 6060 one bearing is fixed on the levitating micropropulsion structure 6030 while the other is on top of a column 6040 reaching inside the microsatellite and fixed on a base 6050 capable of precise vertical alignment by means of adjustment screws and leveling bubble since two opposite magnets do not form a perfectly stable system it is necessary to guarantee a lateral alignment of the two repulsive forces and the gravity force this is achieved by means of a needle 6100 protruding from one of the two parts i e the column and engaging a concave seat 6110 in the other part i e the levitating object such as the microsatellite under testing the distance between the two magnets is kept by the needle seat at a value insufficient to generate a force that completely balances the weight of the levitating body in this way there is still a small force keeping the needle 6100 in the center of the seat 6110 and therefore anchoring the two parts together in a stable way since such residual force can be selectively reduced by fine tuning the magnet distance thanks to a sliding support 6200 also.