
Microscopic Wrinkles in Leaves Ward Off Insects
Researchers identify a new insect-defense mechanism

Microscopic Wrinkles in Leaves Ward Off Insects
Researchers identify a new insect-defense mechanism

Poem: A Unified Theory of Love
Science in meter and verse


Readers Respond to the October 2020 Issue
Letters to the editor from the October 2020 issue of Scientific American

Astronomer Avi Loeb Says Aliens Have Visited, and He’s Not Kidding
In conversation, the Harvard University professor explains his shocking hypothesis—and calls out what he sees as a crisis in science

Why Anthropology Matters
It’s the antidote to nativism, the enemy of hate—a vaccine of understanding, tolerance and compassion that can counter the rhetoric of demagogues

The Four Most Pressing Science Priorities for the Next President

Did a Supermassive Black Hole Influence the Evolution of Life on Earth?
The idea isn’t as absurd as it might sound

A Stunning 3-D Journey inside a Cancer Cell
Created with a technique called Z stacking, this GIF brings the disease to life

Biden Elevates Science in Week One Actions
The president has moved quickly on COVID-19 and climate change and has boosted scientists’ roles in his administration

Scientists Take a Cattle Head Count in India
The research team determined that the city of Raipur in central India has at least one street cow for every 54 human residents. Christopher Intagliata reports.

Axiom Space Names First Private Crew to Visit Space Station
The four men will voyage to orbit in 2022 aboard a SpaceX Crew Dragon spacecraft

‘Inspired Choice’: Biden Appoints Sociologist Alondra Nelson to Top Science Post
Scientists praise US president’s selection of the bioethics and social inequality specialist to help lead the Office of Science and Technology Policy