This week's edition—in which 99% Invisible producer Avery Trufelman spoke with art historian Christy Anderson and interior designer Brooke Taylor about the fancy shape known as the quatrefoil ...

Translation: “sailor’s knots.” A shape presumably invented by Neapolitan producer Setaro that, as far as we know, nobody else does. In addition to knots, they look like little spaceships ...

Circle, square, triangle—boring! There are so many more shapes than those in nature. Good thing there’s a rich vocabulary of fancy scientific words for shapes. Most of them don’t get much ...

Fancy colored diamonds make up the top five ... In keeping with the holiday spirit, three of these diamonds boast heart shapes. The live sale will not be open to the public, which is mandated ...

Circle, square, triangle — boring! There are so many more shapes than those in nature. Good thing there's a rich vocabulary of fancy scientific words for shapes. Most of them don't get much use ...

There are diamonds in the sky, and they've been cut naturally. The striking diamond shapes of the space rocks Ryugu and Bennu — the targets of the sample-return missions Hayabusa2 and OSIRIS-REx ...