The feared gang MS-13 was born out of conditions resulting from U.S. policies in El Salvador in the early 1980s.

Scientists suggest keeping old offshore oil platforms as productive fish habitats.

The jury is still out on whether or not Koko's signing skills proved that apes can learn language. But we certainly learned a lot from the famous gorilla.

The U.S. and most other large militaries have been trying to develop laser weapons for decades. Has China created the first portable laser gun?

The Pinto became known as the subcompact car that Ford sold while ignoring major safety defects. But was that just a false narrative?

Susan LaFlesche Picotte was first Native American to be licensed to practice medicine in the U.S. She opened her own hospital, but didn't live to run it.

He's hailed as the "father of infection control" and the "savior of mothers," but the truth about Ignaz Semmelweis is more complicated than that.

Nestlé promoted formula in the developing world, even though they knew bottle-feeding with limited sanitation and refrigeration could be dangerous.

Many abolitionists seeking to end slavery in the British West Indies were concerned less with human rights, more with the preponderance of what they saw as "interracial sex."

The Book of Stones, a central alchemical text, contained formulae with the power to create living tissue from ordinary matter, supposedly.