ABSTRACT We present K2-2016-BLG-0005Lb, a densely sampled, planetary binary caustic-crossing microlensing event found from blind search of data gathered Campaign 9 the Kepler K2 mission (K2C9). K2-2016-BLG-0005Lb is first bound exoplanet discovered space-based data. The has caustic entry and exit points that are resolved in K2C9 data, enabling lens-source relative proper motion to be measured. ...