As a team of investigators led by the FBI begins deciphering the bombs that killed three people and wounded 150 more in Boston this week, a key clue is already in plain sight on countless videos taken ...

ROME, Italy — When a new pope is needed, the College of Cardinals gather at the Vatican to vote and colored smoke flows out of the Sistine Chapel’s chimney depending on the result — but what does it ...

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To observers of the papal conclave, one part of the process will probably stand out as the most visible and exciting. Today, all 115 cardinals will isolate themselves from the rest of the world, their ...

As the papal conclave continues, onlookers from around the world will watch for smoke in Vatican City, eager for the first update on who will be the next leader of the Catholic Church. On the morning ...

Yesterday the eyes of the world were fixed on a chimney over the Sistine Chapel, eager to see the color of the smoke that would pour out. And at 6:45 PM, the smoke that they saw was black, indicating ...

The red smoke of a flare on a roadway warns motorists to be cautious, but the anthraquinone dyes currently used to produce this smoke are thought to be harmful to human health. Now, researchers ...

We all have grilling hacks we wish we knew sooner. This is because backyard grilling is not without its perils — it's easy to under or overestimate how long it will take food to cook. Allow meats and ...

Pyrotechnics are fun, and, with the proper precautions taken, safe enough to play with at home (usually). While it’s typical to purchase fireworks and smoke devices off the shelf, it’s actually ...