Each fall — always before Thanksgiving — Diane Johnson looks to the sky above her home, waiting for the moment when her birds return. “You look up, and they’re here,” she says. “And you remember how ...

President Donald Trump’s administration is directing employees at the U.S. Department of Agriculture to investigate foreign scientists who collaborate with the agency on research papers for evidence ...

The Environmental Protection Agency is trying to end the basic government consensus that climate change hurts human health and the environment, launching what’s likely to become a multiyear legal ...

Brad Fuller was a toddler when he contracted polio in 1952 and was sent to a hospital miles from his northeast Pennsylvania home. He stayed there for nine months, enduring long stints in an iron lung, ...

Nuclear weapons laboratories don’t often help solve serial-killer cases. But in the investigation of Efren Saldivar, data from such a lab provided the clinching evidence that led to his conviction on ...

Helen Pearson’s “Beyond Belief” profiles figures who propelled medicine and other fields toward evidence-based thinking.

In "Huge Numbers," mathematician Richard Elwes spotlights some of the largest numbers humans have ever contemplated.

As cases mount, industry pushback is delaying federal rules that would reduce miners’ exposure to deadly silica dust.

At the height of the Cold War in the 1950s, as the fear of nuclear Armageddon hung over American and Soviet citizens, ­idealistic scientists and engineers saw the vast Arctic region as a place of ...

Every day, Jerry Grabarek looks out for a plume of smoke a couple miles from his dairy farm. Grabarek, a 73-year-old from Preston, Connecticut, can’t always see the plume. Some days are too rainy. Or ...