Radio-loud neutron stars known as pulsars allow a wide range of experimental tests for fundamental physics, ranging from the study of super-dense matter to tests of general relativity and its alternatives. As a result, pulsars provide strong-field tests of gravity, they allow for the direct detection of gravitational waves in a pulsar timing array, and they promise the future study of black hole properties. This contribution gives an overview of the on-going experiments and recent results.
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