Scientific American Magazine

Half a century after its discovery, this iconic fossil remains central to our understanding of human origins

Gentle nasal spray vaccines against COVID, the flu and RSV are coming. They may work better than shots in the arm

Estimates of how fast the universe is expanding disagree. Could a new form of dark energy resolve the problem?

We have been adding “leap seconds” to time kept by our atomic clocks, but soon we may have to subtract one. Are the tiny adjustments worth the bother?

This collection shows what works to advance health equity around the world

New formulas, devices and tools are removing historical bias from medical diagnoses

Some of the most inventive changes to health care have started in rural communities around the world

Vaccines are the first step toward health equity in many parts of the world

Health experts share what gives them hope for improving health for all

Medical professionals who connect with their patients’ language and culture provide better care

Separating medical data from culturally distinct Asian American, Native Hawaiian and Pacific Islander (AANHPI) groups can improve health outcomes

Tools and networks that have helped control HIV/AIDS are now working against mpox