Genetics
The DNA You Shed Could Identify You
The DNA you shed everywhere could be used to identify you, and experts are concerned
Latest Stories
Health Care
More Hospitals Are Creating Police Forces
Criminalizing patients could have adverse consequences, experts warn
Climate Change
Hawaii Has Permafrost, and Scientists Are Racing to Study It before It’s Gone
Permafrost can—incongruously—be found in Hawaii, but surveys show it has been shrinking over time, in part because of climate change
Astronomy
Elon Musk’s Starship Won’t Save Astronomy from Satellites Cluttering the Sky
Launching a fleet of space telescopes is not the solution to the Starlink problem
Astrophysics
Is Time Travel Even Possible?
Two SciAm editors duke it out to see if wormholes and multiverses could in fact exist.
Psychology
People in the U.S. Think They Are Better Than They Actually Are. People in Asia Don’t
Western individualism may promote a “better than you actually are” mindset
Animals
Lab-Grown Monkey Embryos Reveal in 3-D How Organs Begin
At 25 days old, these specimens could be the oldest primate embryos ever grown outside the womb
Astronomy
Betelguese’s Brightening Raises Hopes for a Supernova Spectacle
Betelgeuse, the red star at the shoulder of the constellation Orion, has been acting strange, raising hopes for the spectacle of a lifetime
Creativity
Here’s How to Use Dreams for Creative Inspiration
Channeling Thomas Edison and Salvador Dalí, researchers show that shaping dream imagery could spark creative ideas to target a specific problem
Conservation
Rats Are Finally Gone from This Vulnerable Island
Efforts to eradicate invasive rats that have decimated native species on islands around the world are beginning to bear fruit
