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New insights into the flying capabilities of a nonbird dinosaur were drawn from an unusually well-preserved specimen known as the Chicago Archaeopteryx.

The E.P.A. said it would maintain limits on the two most common PFAS chemicals found in tap water but roll back rules for four others.

Experts predicted that artificial intelligence would steal radiology jobs. But at the Mayo Clinic, the technology has been more friend than foe.

The drugs treat disorders such as anxiety, panic attacks and insomnia, but stopping them abruptly can compound users' symptoms and even endanger their lives.

Cambrian Period creatures known as sea moths seemed alien because of their additional eye, but a study finds anatomical features more in line with modern animals.

Public health and addiction experts fear millions could lose access to treatment and prevention services if the administration's proposed cuts are enacted.

The state claimed 'forever chemicals,' also known as PFAS, contaminated groundwater from an industrial park where they were used for decades.

A leaked version of the department's five-year strategic planning document favors privatization and economic returns from the nation's public lands.

The party's signature tax plan would kill most Biden-era incentives, but there's a sticking point: G.O.P. districts have the most to lose.

A new clinic, opened by a pulmonologist who lost his home in the Palisades blaze, is addressing the health issues developing among people exposed to the fires.