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Algebra, trigonometry and calculus keep millions of people from graduating. And they're unnecessary, argues author and professor Andrew Hacker.

A drug called lenacapavir, administered in two injections a year, offers protection from HIV comparable to daily pills. One looming question: Will it be affordable for lower resource countries?

Several women who have had trouble conceiving children have gone to a clinic in Ukraine that is doing something unique: using DNA from three different people to create a healthy embryo.

Tania Lombrozo is a contributor to the NPR blog 13.7: Cosmos & Culture. She is a professor of psychology at the University of California, Berkeley, as well as an affiliate of the Department of Philosophy and a member of the Institute for Cognitive and Brain Sciences. Lombrozo directs the Concepts and Cognition Lab, where she and her students study aspects of human cognition at the intersection of philosophy and psychology, including the drive to explain and its relationship to understanding, various aspects of causal and moral reasoning and all kinds of learning.

In January, one person died and five others were hospitalized during a test of an experimental drug in western France. Scientists are still trying to figure out exactly what went wrong.

In a preliminary study, a new type of vaccine offers strong protection against malaria when given at high doses. The study was extremely small and short-term. But health leaders say they are cautiously optimistic about the approach.

Layers of wax in the marine mammals' ears can be read like tree rings, scientists say, recording a whale's age and also information about pollutants in the water the whale swam through.

Frank Rubio's first mission broke the record for the longest U.S. spaceflight earlier this month. Rubio is a medical doctor and was a lieutenant colonel and Blackhawk helicopter pilot in the Army.

The organization of certain brain cells in children with autism seems already different from that of typical children by the sixth or seventh month of fetal development, a study hints.

Federal recommendations say that new buildings in New Orleans and surrounding parishes need to be built at least three feet off the ground. The recommendation also covers buildings being rebuilt after substantial damage from Hurricane Katrina.