Planetary Missions Program Office
... that NASA's Planetary Missions Program Office manages three of the agency's solar system exploration programs?
... that <a href="./NASA" id="mwBVQ" rel="mw:WikiLink" title="NASA">NASA</a>'s <b id="mwBVU"><a href="./Planetary_Missions_Program_Office" id="mwBVY" rel="mw:WikiLink" title="Planetary Missions Program Office">Planetary Missions Program Office</a></b> manages three of the agency's <a href="./Timeline_of_Solar_System_exploration" id="mwBVc" rel="mw:WikiLink" title="Timeline of Solar System exploration">solar system exploration</a> programs?