Catholics worldwide are once again keeping their eyes on a chimney atop the Sistine Chapel in Vatican City, waiting for word of the selection of a new pope.
Cardinals have gathered for a historic conclave to select a successor for Pope Benedict XVI, and every time the cardinals take a vote, smoke will billow from the chimney.
The color of that smoke, though, is what really matters. If the smoke burns black or gray, no new pope has been selected.
However, when white smoke begins rising from the Sistine Chapel's chimney, the Catholic church has a new leader.