What is the science behind the smoke signals on the Sistine Chapel to announce if a new pope has been elected?

Watch live to see the moment the new pope is revealed - he's expected to step out onto the balcony overlooking St Peter's ...

The smoke signal means the winner secured at least 89 votes of the 133 cardinals participating in the conclave to elect a ...

The temporary chimney atop the Sistine Chapel released a plume of white smoke on Thursday, signaling that the 133 cardinals ...

The Vatican News, the official communications outlet of the Vatican, posted on X on Wednesday that all nonessential personnel had left the Sistine Chapel so the cardinals could vote in private. The ...

New leader of Catholic Church chosen as white smoke pours from Sistine Chapel chimney - A record 133 cardinals from 70 ...

Pope Francis has been laid to rest, the conclave has been assembled and, after due deliberation by the participating cardinals, the world at last has seen white smoke wafting from the Sistine Chapel ...

The world will learn the name of the new pope when he appears on the balcony of St. Peter's Basilica in about an hour.