Kristen C. French

New study shows what happens in our brains as we track multiple conversations

3-D avatars of macaques fool their flesh-and-blood counterparts—up to point

Cat-sized tyrannosaur hatchlings had lots and lots of siblings

It hijacks a common process present in all cells

People who can’t see images in their minds challenge an old philosophical standby

With the recent auction of arguably the most famous pen ever used off-Earth, we take a moment to reflect on the evolution of such cosmic utensils