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Searching for small fossils in big rocks requires specialized tools --tools that scientists could also use to look for evidence of life on Mars in rocks that may be similar on both planets.

The San Diego Botanic Garden expands its collection of medicinal plants four-fold as scientists learn to harness their power.

Scientists have created a broadly effective antivenom using the blood of a Wisconsin man who has spent years exposing himself to deadly snakebites from black mambas, taipans, cobras and many others.

Butterflies of all kinds of species, in all parts of the country, have declined by one to two percent per year since 2000.

Broken Heart Syndrome mimics symptoms of a heart attack. It can strike after a stressful event, such as the loss of a loved one, a physical shock, or prolonged anxiety. The good news: It's treatable.

As questions swirl around the fate of the secretary of defense, former colleagues paint a troubling picture of Hegseth's Pentagon.

Cynicism is tempting in uncertain times. But Stanford psychologist Jamil Zaki says cynicism makes us more lonely, less trusting and less healthy. He suggests opting for "hopeful skepticism" instead.

What does the clash between Harvard and the Trump administration look like from the perspective of its faculty? NPR's Michel Martin asks Harvard Law School professor Nikolas Bowie.

An NPR listener says her friend pings her morning, noon and night, even if she doesn't respond. She'd like to say something, but she's afraid it will hurt her friend's feelings.

Legal experts say states could help married women who have changed their last names by accepting documents like a legal decree or a marriage certificate, but it might not fix the issue for all.