Astronomy
Unraveling the Secrets of This Weird Beetle’s 48-Hour Clock
New research examines the molecular machinery behind a beetle’s strange biological cycle
Readers Respond to the January 2024 Issue
Letters to the editors for the January 2024 issue of Scientific American
Scientists Discover Extensive Brain-Wave Patterns
Certain brain layers specialize in particular waves—which might aid understanding of neuropsychiatric disorders
Fiddler Crabs Unleash Special Vibrations to Attract Mates—And Deter Foes
Social context shapes how fiddler crabs communicate by vibrating the ground underneath their burrows
New Image of Our Galaxy’s Biggest Black Hole Previews What’s Next for Globe-Spanning Telescope
As the Event Horizon Telescope pursues ambitious upgrades, the project’s latest results reveal the magnetic fields around our galaxy’s supermassive black hole
Guilt-Tripping for the Public Good Often Achieves Its Intended Result
The emerging science of laying guilt through public messaging can help safeguard the planet and improve health behaviors
Locs Represent Resistance for Black People in the U.S. That’s Why They Are under Fire
In cultures hostile to African hairstyles, so-called dreadlocks have long been a countercultural symbol for those who stand in opposition to oppressive ideals
Venomous Snakes Are Spreading because of Climate Change
Deadly bites could surge as venomous snakes migrate into unprepared countries as the climate changes
