Francesca Paris

Researchers at the University of Pittsburgh have developed the latest tool to detect THC — the main psychoactive ingredient in marijuana — in a person's breath.

When fireworks go off in the vicinity of birds, the results can be fatal. Stick to commercial shows, experts say.

Maximum Security outpaced the competition on the muddy track and appeared to have won but was disqualified after an objection. Country House's trainer called it a bittersweet victory.

The building burned for hours on Monday, with smoke billowing into the sky. The cause of the cathedral's blaze was not immediately known, but the initial investigation points to an accident.

Astronauts in the station opened Crew Dragon's hatch and entered the spacecraft on Sunday, in a significant moment for both Elon Musk's company and the future of commercial space exploration.

Gizmodo's Kashmir Hill spent six weeks trying to cut Amazon, Facebook, Google, Microsoft and Apple out of her life completely. "Spoiler," she says. "It's not possible."

A substantial share of Americans are feeling hopeful about the new year, according to a new NPR/ PBS NewsHour/Marist Poll. And some of us, especially young people, plan to make resolutions.

Despite gridlock in Washington, D.C., more than 1,500 military personnel and volunteers at a Colorado Air Force base will be hard at work Christmas Eve, tracking Santa and answering children's calls.