Science

Heavy rain shifted the lid of a tank at PES refinery causing fumes to escape. City officials say there is no sign abnormal pollutants were released

Horseshoe crabs breed along North America’s eastern coast, from Maine to Mexico. And every year, tens of thousands of them hook up on the beaches of Delaware and New Jersey.

We discuss the threats to African and Asian elephants, the illegal ivory trade, what we're learning about their minds and social lives, and their relationship with people.

NPR spoke to five former NASA astronauts who flew on space missions to learn how they see these photos.

Pennsylvania state officials are asking for the public’s help in controlling the spotted lanternfly — an invasive insect that is both a nuisance and a threat to crops.

But before humans can go to Mars, they have to get back to the moon.

A nonprofit foundation set up by Joe Biden that relied on health care world partnerships to speed a cure for cancer has suspended its operations, it announced Monday.

PFAS chemicals have been discovered in some private water wells in Bucks Couny. Why are some Pennsylvanians only now realizing their water is contaminated?

What did Neil Armstrong really say when he took his first step on the moon?

More nations than ever are racing to the moon. Their lunar ambitions are driven by advances in technology and a desire to prove themselves.

Scientists are making progress in identifying environmental hazards that contribute to cancer. Researchers say many cases could be avoided if the work is accelerated.

Where were you on that day in July 1969? A lot of people watched, and say it changed their lives.

On July 20th, 1969, Neil Armstrong and Buzz Aldrin became the first humans to walk on the moon. It was an astounding achievement — ...

A new report says Philadelphia will do quite well compared to other places in the U.S. as more work gets automated.

Government scientists predict 40 places in the U.S. will experience higher than normal rates of so-called sunny day flooding this year.