At the last conclave, in 2013, the Vatican said it used a mixture of potassium perchlorate, anthracene and sulphur to produce black smoke, and potassium chlorate, lactose and rosin for white.

The Conclave is now underway, at least, in ceremony. Mass marking the start of the process came to a close Wednesday in the Vatican and hundreds of people poured into St. Peter's Square.

VATICAN CITY (AP) — Black smoke poured out of the Sistine Chapel chimney on Wednesday, signalling that no pope had been elected as 133 cardinals opened the secretive, centuries-old ritual to ...

Where does a papal conclave take place? A papal conclave takes place at the Sistine Chapel in Vatican City. Only the College of Cardinals is allowed inside. What is the College of Cardinals?

Madonna has called on Pope Leo to travel to Gaza amid the ongoing humanitarian crisis, asking him to "bring your light to the ...

At the last conclave, in 2013, the Vatican said it used a mixture of potassium perchlorate, anthracene and sulphur to produce black smoke, and potassium chlorate, lactose and rosin for white.

Following the death or abdication of a pope, the Catholic Church's College of Cardinals meets at the Vatican to choose a new leader at a papal conclave.