How was the rare Saturn-like planet TVLM513B discovered?

TVLM513B was discovered by astronomers detecting a wobble in its star's motion caused by the gravitational pull of the planet. This marks the first successful application of this detection technique using a radio telescope, specifically the continent-Wide Very Long Baseline Array. The technique is typically used for detecting Jupiter-like planets in distant orbits from stars. Located about 35 light years from Earth, TVLM513B has a mass similar to Saturn and orbits in a path resembling Mercury's. This discovery is particularly significant because it's rare to detect extrasolar planets orbiting around small, cool stars.