Health & Science

“Fentanyl has taken over from heroin as the number one drug that’s killing people in Philadelphia today,” said Health Commissioner Thomas Farley.

The Ruth Williams House’s 88 new units are reserved for those who have been homeless or are at risk of becoming homeless.

Our sun, like so many others, was born as part of a cluster of stars. Sibling stars have the same chemical composition and can be discove ...

The longhorned tick is known to transmit diseases in East Asia, but no disease has been detected in the ones found in Hunterdon County.

As more states legalize marijuana, there's growing interest in a cannabis extract — cannabidiol, also known as CBD.

It's not easy to hold onto your possessions when you're living on the street, and that also goes for your license or birth certificate.

They're anonymously posting mean and derogatory comments about themselves on social media.

Plane crashes are rare, but when they happen, people often survive them.

Philadelphia is wrestling with one of the nation’s highest overdose death rates amid a drug crisis that does not appear to be letting up.

Philadelphia Science Festival brings new perspective to Reading Terminal Market treats.

The current political atmosphere has many people feeling distressed. What’s the best way to cope with our emotions when we’re outrage ...

Tess — short for Transiting Exoplanet Survey Satellite — will spend two years searching for planets.

Thirty-four-year-old Meghan Adorno says being vegan is about keeping herself healthy, protecting animals, and saving the planet.

Living in Houston with flaring smokestacks in the distance stoked Carrie Feibel’s eco-anxieties. Still, she decided to have a kid... but just one.

Some companies offer you the chance to “erase” your carbon sins without making big changes to your lifestyle.