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Azerbaijani troops moved into Aghdam, the first of three districts to be returned to the country under the latest cease-fire. President Ilham Aliyev hailed the moment Friday as a "historic victory."

Using machine learning and artificial intelligence, researchers hope to document — and later recreate — historical scents and smell-scapes from as far back as the 16th century.

In 2017, a study reported one in three people in one rural Alabama county had been exposed to hookworm. Catherine Coleman Flowers says the study reveals big gaps in sanitation in rural America.

The Labor Day 2019 blaze aboard the Conception killed 33 passengers and one crew member. Prosecutors say the vessel's captain failed to follow safety rules.

The newest justice did not participate in the court's work last week, and, consequently, did not vote in two significant cases decided by the court in opinions released Monday.

Can rubbing hand sanitizer inside the nostrils help reduce infection? Can spraying Lysol in a room every hour or so disinfect the air? Plus: a primer on how to use hand sanitizer effectively.

Newly released COVID-19 vaccine contracts include weakened protections against potential price gouging. Several key federal contracts still haven't been disclosed by the government.

A survey from the nonpartisan group Freedom House finds that democracy and human rights have lost ground in 80 countries — and even calls the U.S. to task. But there are bright spots.

Readers want to know the best way to maintain a reusable mask? There are a few options. But spoiler alert ... keep it out of the oven!

China banned fentanyl last year, but an NPR investigation reveals how Chinese vendors continue to market the chemicals used to make the drug on e-commerce and social media sites.