Ashish Jha, the former White House Covid-19 response coordinator, discusses the country's successes and mistakes.

In recent years, some doctors have criticized the organizations for being overly punitive, and say they felt obliged to work ...

The COP conference is growing in size, but not in action on climate goals, experts say. A 2021 report suggests reform.

Pharmacies in the nation of Georgia have something ours don’t: vials of viruses in neat rows. People swallow or gargle the brews to combat routine bacterial infections. The viruses are bacteria-eaters ...

In the fall of 2023, Matt Theurer and his team at HyperSpectral, an artificial intelligence company, landed a meeting with the Defense Advanced Research Projects Agency. They had sophisticated ...

It was a monumental disaster. The dynamiting of the Kakhovka dam on Ukraine’s Dnieper River just before dawn on June 6 last year rapidly emptied Europe’s largest hydroelectric reservoir. Some 14 ...

Living things began tracking the incremental passage of time long before the human-made clock lent its hands. As life grew in harmony with the sun’s daily march through the sky, and with the seasons, ...