Research suggests it was more sudden than that.

The idea of awarding legal personhood to nature has received renewed attention in the contemporary environmental justice movement, but much contention remains.

From excitement about its potential to revelations of its possible toxicity, Teflon has taken a wild ride through American science, manufacturing, and marketing.

Concerns about privacy and pressures regarding the physical appearance of women and their homes contributed to the failure of AT&T’s 1960s Picturephone.

Following the publication of the DSM-5, mental health professionals debated the expansion of “mental illness” to include normal parts of the human condition.

The astronomical discoveries of the 1600s—such as Saturn’s rings—prompted new questions about the structure of the cosmos and humans’ place in it.

Alan Turing and Christopher Strachey created a ground-breaking computer program that allowed them to express affection vicariously when so doing publicly, as gay men, was criminal.

Rapid growth also helped other ancient reptiles flourish in the aftermath of mass extinction.

Scattered along the Appalachian Trail, “primitive huts” built in various styles offer shelter, social space, and evidence of the trail's long history.

This research team is working out how to detect extraterrestrial cells in the liquid water ocean hidden beneath Enceladus’s icy crust.