Science

Two astronauts aboard the International Space Station conducted the final spacewalk Saturday to finish a series of repairs on a cosmic ray detector attached to the spacecraft.

Hair can be our crowning glory, a big part of our identity, and a tool for self-expression. We shave it, style it, cut it, dye it — an ...

In Philadelphia, the survey found two of the most commonly researched PFAS chemicals at levels far below the EPA’s recommended limit.

The U. S. government this week is pondering how much the public needs to be told about funding decisions for lab research that could make risky viruses even worse.

Five chemical companies have been accused of contaminating many areas of New Jersey with toxic PFAS chemicals.

The Republican governor said that Pennsylvania is “repeatedly falling short” of goals to curb pollution flowing down the Susquehanna River into the bay.

We talk about the impact of flying on climate change, the "flight shaming movement," and the pros and cons of carbon offsets with two climate scientists and a travel writer.

We look at the bushfires raging in Australia and discuss the role climate change is playing on wildfire severity and frequency around the globe.

After a long history of erasure, communities of color are reclaiming psychedelic traditions to heal from trauma.

After a decades-long hiatus, researchers are taking a fresh look at the potential of psychedelics in therapy. Could substances like ketam ...

The New Year is often a time for a fresh start. We reflect on our past habits, and resolve to do better — eat healthier, work harder, o ...

How five near-death experiences drove David Fajgenbaum to live his life to the fullest, and discover a novel treatment for Castleman's disease.

Sometimes, it means better conferences, as collaboration and access improve.

Here’s a list of some favorite episodes, curated by The Pulse team members themselves.

A U.S. astronaut set a record Saturday for the longest single spaceflight by a woman, breaking the old mark of 288 days with about two months left in her mission.