Science

Researchers found roughly 240,000 detectable plastic fragments in a typical liter of bottled water. Most of them were nanoplastics — particles less than 1 micrometer in size.

Companies must now notify the EPA if they want to resume the production of certain PFAS chemicals.

Early metaverse pioneers on lessons learned using a 3D virtual platform.

There’s a growing field of academic study where archaeologists study virtual worlds, or work with game developers to recreate historical sites.

Delaware report encourages the state to approach offshore wind with “flexibility” in an uncertain market.

Virtual worlds allow us to reinvent ourselves and build new lives. But some of our troubles follow us there. A look at navigating community, love, and work in digital realms.

University of Delaware is one of five institutions across the U.S. that received funding from the EPA to study how to measure methane in landfills more accurately.

Philadelphia takes steps toward renewable energy goals with a solar farm in Adams County.

Scientists say reindeer seem to sleep while they chew, allowing them to forage all day in the summertime and still get enough sleep.

We talk with Keltner about his new book “Awe: The New Science of Everyday Wonder and How it Can Transform Your Life.”

Climate change took a big toll on the Philly region this year, featuring everything from wildfire smoke to serious flash floods. And yet, climate solutions abound.

“I was played a fool,” said one resident, who will have a gas well running under her land. “This was the most egregious betrayal I’ve experienced."

NOAA said there should be no impact to any critical habitat for the North Atlantic right whale, only 360 or so of which remain in the world.

Environmentalists have been calling for improved water quality for the endangered Atlantic Sturgeon for more than a decade.

Pa. has seen an increase in chronic wasting disease since 2012. While the state has implemented tracking and mitigation efforts, testing is still optional for hunters.