The crowd in St. Peter’s Square erupted in cheers as the white smoke billowed into the air. It meant the winner secured at ...

All eyes were on the smoke billowing from the Sistine Chapel on May 8 as 133 cardinals voted to select the successor to Pope ...

White smoke billowed from the chimney of the Sistine Chapel on Thursday, signalling that cardinals locked inside have elected ...

White smoke rose from the Sistine Chapel on Thursday (May 8) and the bells of St Peter's rang out, signalling that cardinals ...

White smoke was seen emanating from the chimney of the Sistine Chapel, indicating that a two-thirds vote has been reached to ...

White smoke from the Sistine Chapel on Thursday signaled the election of a new pope on the conclave’s second day, sparking ...

Fox News' Bret Baier has the latest on the interim U.S. attorney for DC on 'Special Report.' The Indian Army on Friday ...

Vatican City is abuzz as white smoke billows from the Sistine Chapel, signaling the election of a new Pope after two unsuccessful ballots. A cardinal will soon announce 'Habemus Papam!' ...

Cardinals in Vatican City failed again to elect a new pope, after two more inconclusive rounds of voting. Black smoke from ...

White smoke was seen emanating from the chimney of the Sistine Chapel, indicating that a two-thirds vote has been reached to elect the new pope.

VATICAN CITY — White smoke billowed from the chimney of the Sistine Chapel on Thursday, signalling that cardinals locked inside have elected a new leader for the world’s 1.4 billion Catholics.

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