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

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. It can be quite tricky to know how to watch the Star Wars movies in order, from the original 1977 ...

In the intricate architecture of plant tissues, beauty often emerges from chaos, according to new research from Cornell ...

A pulse of light sets the tempo in the material. Atoms in a crystalline sheet just a few atoms thick begin to move—not ...

If you are a middle child, or have a sibling who is a middle child, you may be wondering if “middle child syndrome” is a real thing. Middle child syndrome is the belief that middle children are ...