The most famous packing problem concerns spheres. In 1611, the astronomer Johannes Kepler proposed that the densest way to ...

To make a truly realistic fake picture of a galaxy, you can model exactly how light particles travel through the atmosphere ...

The National Organization for Women (NOW) found that 53 percent of American girls say they are unhappy with their bodies by ...

A new optical illusion is going viral. It plays tricks on how we see colours. The illusion uses green, yellow, and black.