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Magnets don't stop working in space, but they become completely unreliable for navigation. On Earth, magnets work predictably because of our planet's magnetic field generated by molten iron in the core. A compass points north because it aligns with Earth's magnetic field lines.

In deep space, there's no planetary magnetic field to provide orientation. Magnets still attract metal objects, but a compass would spin randomly with no north or south. The Sun's magnetic field and solar wind create chaotic magnetic environments that make magnetic navigation impossible.

This is why spacecraft use gyroscopes instead of magnetic compasses. Near extreme objects like neutron stars, magnetic fields become a billion times stronger than Earth's, powerful enough to rip magnets apart instantly. This video explores why space fundamentally changes how magnetism works.