The Vatican’s cardinals gather in conclave today to begin electing the successor to the late Pope Francis—which means the ...

Pyrotechnic chemistry drives the Vatican’s recipes for the black and white smoke used to announce papal election outcomes ...

The Vatican’s age-old tradition of using smoke signals to announce the outcome of papal elections has received a modern ...

During a Papal Conclave, the world will be watching for white or black smoke from the Vatican's chimney. Here's what it means ...

The black and white smoke that emerges from the Sistine Chapel during a papal conclave is part of a longstanding tradition — ...

For black smoke, the Vatican uses a mixture of potassium perchlorate, anthracene, and sulphur. The white smoke used to signal ...

This week, 133 cardinals have gathered in the Vatican to elect a new leader of the Catholic church. During their ...

A Washington Post examination of videos, satellite imagery and expert analysis reconstructs how the fatal explosion at Iran’s ...

At the end of each voting round, black smoke means a new pope has not yet to be selected, while white smoke indicates a new ...

Cardinals have no contact with the outside world after the master of liturgical ceremonies utters the words “Extra Omnes” the ...

It’s known that Iran has been doing all kinds of sanctions busting and so on in order to supply their weapons program,” said Andrea Sella, a professor of chemistry.

More than 1000 people injured after cargo caught fire and exploded ...