Smoke signals have occurred at mid-morning, noon, mid-afternoon and evening. The longest conclave took three years.

Here's what to know about the black and white smoke used during a papal conclave. Start the day smarter. Get all the news you ...

Here's how the conclave creates black and white smoke and why the Catholic Church began using them to signal whether a new pope has been elected.

For white smoke, a compound of the chemicals potassium chlorate, lactose, and rosin (also known as Greek pitch) is used, while potassium perchlorate, anthracene, and sulfur are used for the black ...

Black smoke has been rising from the Sistine Chapel, signaling that the cardinals have not yet elected a new pope on Thursday ...

The 2025 papal conclave is underway. Who will be the new pope when the white smoke settles? Who is the odds-on favorite? Are ...

Papal conclave ballots have been burned to maintain secrecy for centuries. Ballot smoke has been used to announce a decision since 1914.

The conclave on Thursday elected a new pope after white smoke was seen rising from the Sistine Chapel, but the new pope has ...

At Conclave, what's the difference between white smoke and black smoke coming from the Sistine Chapel chimney? We have an ...

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In modern history, most conclave's have taken two to three days. Pope Francis (2013), Pope Benedict XVI (2005), Pope John Paul I (1978) and Pope Pius XII (1939) were all elected after two days of ...