Two mathematicians have proved that a straightforward question—how hard is it to untie a knot?—has a complicated answer.

Start by trimming the tree with your Christmas lighting of choice (you can never go wrong with warm lights, in my opinion), ...

It may take you short of a day to find the perfect Christmas tree for your family, but for those that grow them, it takes ...

Peter Waldman Artisan, glassblower, and balloon man. Peter Waldman is never without a balloon. Even out to dinner, he will pause and twist up a creation if there’s a child nearby. For the past 40 ...

The Christmas tree is up at downtown Pittsburgh’s PPG Place, more than two months before the holiday on Dec. 25. The tree was erected at the ice rink in the plaza. “I’m really excited because we’re ...

Cats may love playing with the cardboard box your groceries came in, but when it comes to keeping them active, entertained, and scratch-happy, most pet parents want something sturdier and cuter in ...

An optical illusion is a visual phenomenon where our eyes perceive something differently from reality, tricking the brain into misinterpreting what it sees. These illusions occur because the brain ...

DENVER (KDVR) — A suspicious activity report resulted in officers finding a puppy in an allegedly stolen vehicle, according to the city of Lone Tree. In a post to Facebook, the city said officers ...

Jake brings two decades of experience with him, having covered major industry events, breaking news, one-on-one interviews, and more. When he's not playing World of Warcraft, he's usually on the hunt ...

An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is perceived as a natural artistic black-and-white illustration optical illusion, ...