Science

In this bonus episode, we talk about the social lives of old trees in the forest and research that has changed our understanding of trees and forest ecology.

Bram Stoker's tale of Count Dracula turns 125 this year. A look at the famous literature, its author, and the vampire panic in the 19th century spurred by deadly Tuberculosis.

It’s that time of year when we celebrate something we usually hate: fear. We visit haunted houses and corn mazes or binge-watch the sca ...

From the archives, our interview with Lindsey Fitzharris, author of 'The Facemaker: A Visionary Surgeon's Battle to Mend the Disfigured Soldiers of World War I.'

There’s a lot to love about grasslands — the sound of the wind blowing through them, the way the colors change with the seasons, how ...

Cheetahs were declared extinct 70 years ago in India. Ecologists hope its reintroduction will boost efforts to preserve the country's vast grasslands.

In the early days of the pandemic, life on the streets changed. Traffic was clear, and the roads felt nearly deserted. Bumper-to-bumper c ...

NASA smashed a spacecraft into an asteroid in an attempt to throw it off course. The mission succeeded beyond expectations, officials said.

'Breathless' tells the story of the worldwide scientific quest to understand and trace the origins of Covid-19 and develop treatments to fight the deadly virus.

The University of Delaware and others are proposing that Brandywine Creek and Red Clay Creek join the National Wild and Scenic Rivers System.

Boston Dynamics and five other robotics companies have signed an open letter saying what many of us were already nervously hoping for anyway.

Sharpless, a Philadelphia native who attended the Friends Central School, previously won a Nobel Prize in 2001 and is now the fifth person to receive the award twice.

In images streamed as the impact neared, the egg-shaped asteroid, called Dimorphos, grew in size from a blip on screen to have its full rocky surface come quickly into focus.

Environmental advocates are speaking out against a Pa. DEP plan to clean up decades-old contamination at the site of the former Bishop Tube facility in East Whiteland Township

Tom Mustill was sure he was going to die — that was the last thing he thought as he watched a humpback whale arc majestically out of th ...