Scientific American.com

What was once fair under the law may become unfair when science changes. The law must react to uphold due process

The outcome of the 2024 U.S. presidential election could set the climate agenda, reshape public education and shift the dynamics of global science collaboration.

A galaxy cluster bends light from seven background galaxies around it, letting astronomers peer into space and time

Efficient machines, paper ballots and human checks make the U.S. voting system robust

Analysis of a strain of the virus circulating in Central Africa shows genetic mutations indicative of sustained human-to-human spread

People are really stressed about the U.S. presidential election. A psychiatrist offers several self-help methods to reduce feelings of despair

The discovery of a new prime number highlights the rising price of mathematical gold

Long before it orbited Earth, the Hubble Space Telescope starred in a famous Superman comic

A heart attack unleashes immune cells that stimulate neurons in the brain, leading to restorative slumber

Pesky leaks on the International Space Station aren’t the most serious issue facing U.S. human spaceflight

At dusk and dawn, the sky dances with three phases of in-between light

The outcome of the 2024 U.S. presidential election could reshape policies from health care at home to nuclear proliferation abroad

Torrential rain, made worse by climate change, has lashed Spain, with Valencia bearing the brunt of the floodwaters

Humans and pigs could both serve as mixing vessels for a bird flu–seasonal flu hybrid, posing a risk of wider spread

When chemist Dora Richardson’s employer decided to terminate the breast cancer research on the drug Tamoxifen in the early 1970s, she and her colleagues continued the work in secret.

The 2024 presidential election will have enormous consequences for the climate, and the health and future of children

A strange supernova remnant first appeared as a “guest star” seen in 1181 by sky watchers in China and Japan

Election polls are increasingly vulnerable to huge mistakes

Put your own spin on a zoetrope with homemade drawings—or carve one into a pumpkin

No, but the direction of our hair whorls could teach us about human development