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

The cardinals, who broke for lunch and will reconvene this afternoon, are expected to continue casting ballots at the Vatican ...

Black smoke again billowed out of the Sistine Chapel on Thursday, the second day of the conclave, indicating that no new ...

White smoke poured from the chimney of the Sistine Chapel and the great bells of St. Peter’s Basilica tolled Thursday after ...

Cardinals returned to the Sistine Chapel on Thursday to resume voting for a new pope after the first conclave ballot failed ...

VATICAN CITY (AP) — Cardinals failed again Thursday morning to find a successor to Pope Francis, sending black smoke ...

The name will be announced later, when a top cardinal utters the words “Habemus papam!” Latin for “We have a pope!” from the ...

The name will be announced later, when a top cardinal utters the words “Habemus Papam!” — Latin for “We have a pope!” — from ...

That means the winner secured at least 89 votes of the 133 cardinals participating in the conclave to elect a successor to ...

The election came on the first full day of voting by the 133 cardinal electors, who secluded themselves behind the Vatican’s ...

White smoke rose from the chimney over the Sistine Chapel in a sign that cardinals sequestered have chosen a new pope.

White smoke has been sighted at the Vatican City's Sistine Chapel, confirming the election of a new pope. The papal conclave ...