Black smoke poured out of the chimney above the Sistene Chapel today, signalling that the first vote for a new pope did not succeed in finding a new pontiff.
Few expected the first vote to determine the next pope and the black smoke was not a surprise. The next vote is expected to be held on Wednesday. SOURCE
The Conclave has begun and soon, a new Pope will be chosen from the over 100 Cardinals gathering at the Vatican.
Once ballots are cast, the ballots are burned.
Black smoke means no Pope was chosen during that particular vote. White smoke means that a new leader of the Roman Catholic Church has been selected and will soon be introduced.
(Please note that the view of the chimney may be interrupted from time to time, and the chimney is not lit so it may be difficult to view during nighttime hours) SOURCE