A new pope will be selected when a candidate gets a two-thirds-plus-one majority vote by the cardinal electors. White smoke will be sent up the chimney of the Sistine Chapel when that happens, to indicate a new pope has been chosen.

The Catholic Church doesn't have a new Pop as the first day of the conclave ends with the cardinals not electing a successor to Pope Francis

Cardinals meet to elect Pope Francis’ successor—will the Church continue his inclusive legacy or return to a more conservative path?