Eighteen days after Pope Francis last appeared on the balcony of St. Peter's Basilica, his successor -- the 267th pope -- emerged.

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 133 cardinals are expected to vote again in the morning after spending the night sequestered at the Vatican residences. On Wednesday evening, black smoke poured out of the Sistine Chapel chimney indicating no pope was elected on the first ballot of the conclave.