ROV Planet Magazine Issue 20: The magazine of choice for Subsea Construction and ROV/AUV Professionals. Featuring Oceaneering Christens Ocean Evolution – ROVs and Subsea Well Intervention – Smart Electrics Overcome Fear of Old Valves – QSTAR Successfully Launches Barcelona ROV Training Centre – Poster – Shell Ocean Discovery XPRIZE Winners Announced – OCEANS'19 Seattle Show Preview – Getting the Best Out of Your Inertial Navigation System – Unmanned, Autonomy, and Artificial Intelligence in Maritime Systems – Ocean Infinity in the Search for the Lost Argentinian Submarine, ARA San Juan – Interview: The ECA Group Toolbox Inside the Belgian-Dutch Naval Contract – Pelagic Research Services' ROV Odysseus: Going Shallow and Going Deep, and Everywhere in Between