Category Science

What Gives Christmas Trees Their Crisp, Cozy Scent?

December 20, 2024 3 min read What Gives Christmas Trees Their Crisp, Cozy Scent? Learn which molecules are responsible for giving Christmas trees their distinct, crisp-yet-spicy scent By Meghan Bartels edited by Lauren J. Young Iuliia Bondar/Getty Images Nothing smells…

This Year’s Nobel Prizes Are a Warning about AI

The awards ceremony for the Nobel prizes took place in December this year, celebrating both work relating to artificial intelligence and efforts by the group Nihon Hidankyo to end nuclear war. It was a striking juxtaposition, one not lost on…

Contributors to Scientific American’s January 2025 Issue

December 17, 2024 4 min read Contributors to Scientific American’s January 2025 Issue Writers, artists, photographers and researchers share the stories behind the stories By Allison Parshall edited by Jen Schwartz Doug Gimesy The Next Viral Plague Photojournalist Doug Gimesy…

Mysterious Constant that Makes Mathematicians Despair

Mathematicians attended Roger Apéry’s lecture at a French National Center for Scientific Research conference in June 1978 with a great deal of skepticism. The presentation was entitled “On the Irrationality of ζ(3),” which caused quite a stir among experts. The…

Earth Life Found inside Ryugu Asteroid Samples

In November 2022 Matthew Genge was peering through a scanning electron microscope at a millimeter-sized speck of the asteroid Ryugu when he noticed something was off. A minuscule yet unmistakable rod-shaped tendril of organic matter previously unseen clung to the…