Black smoke rising from the Sistine Chapel chimney on Wednesday and again Thursday morning indicated that a new pope had not been chosen to replace Pope Francis on the first ballot.Using smoke to communicate to the public whether a new pope has been elected is somewhat a recent tradition for the Catholic Church.

Officials of the Catholic Church are gathering to select Pope Francis' successor during the papal conclave. Watch here for the black or white smoke.

Simply put, a conclave is the assembly of cardinals that elects a pope. The word itself comes from the Latin "com" and "clavis," meaning "together" and "key," respectively – highlighting the absolute, behind-closed-doors secrecy with which the cardinals conduct their discussions and balloting.