Astronomy
Human Uniqueness Is a Myth, Mounting Evidence Shows
Other species exhibit capabilities that were once thought to be exclusive to Homo sapiens
How NASA’s Juno Probe Changed Everything We Know about Jupiter
The Juno spacecraft has rewritten the story on Jupiter, the solar system’s undisputed heavyweight
How Plastics Went from a Sustainability Solution to an Environmental Crisis
Synthetic polymers were supposed to free us from the limitations of our natural resources. Instead they led to an environmental crisis
September 2025: Science History from 50, 100 and 150 Years Ago
Huge fish; spiritualist rebuke
New Treatments Can Free Kids from the Deadly Threat of Peanut Allergy
Remarkable new treatments can free millions of kids and adults from the deadly threat of peanut allergy, tackling one of our fastest-growing medical problems
Contributors to Scientific American’s September 2025 Issue
Writers, artists, photographers and researchers share the stories behind the stories
In the Search for Life beyond Earth, the Only Constant Is Hope
The search for extraterrestrial life has periodically been turned upside down
Science Crossword: A Trip Down Memory Lane
Play this crossword inspired by the September 2025 issue of Scientific American
Math Puzzle: Dissect the Square
Figure out how to split the square in this math puzzle
Public Education Needs Our Support
The U.S. is a global powerhouse. Public education is one of the main reasons why
How Gluten-Free Diets Are Getting Overhyped
Unless you have celiac disease, there are few health benefits to a gluten-free diet
How Sleep Cleans the Brain and Keeps You Healthy
Washing waste from the brain is an essential function of sleep—and it could help ward off dementia
How Scientists Finally Learned That Nerves Regrow—Even in the Adult Brain
Long dismissed as impossible, nerve regrowth is offering new hope for healing injuries and treating neurodegeneration
The Universe Keeps Rewriting Cosmology
The universe has a habit of disproving “unassailable” facts
We Thought DNA Ran Our Lives until We Discovered RNA Is in Charge
DNA holds our genetic blueprints, but its cousin, RNA, conducts our daily lives
'Devil Comet' contains 'strongest evidence yet' that comets delivered water to Earth
AI-generated responses are undermining crowdsourced research studies
AI-generated responses are undermining crowdsourced research studies
How Are AI Chatbots Affecting Teen Development?
More and more kids are turning to artificial intelligence chatbots for social interaction. We are scrambling to understand the pros and cons of their use