Health & Science

The "Great Dying," the biggest extinction the planet has ever seen, happened some 250 million years ago and was largely caused by greenhouse gases in the atmosphere.

The study revealed other roadblocks: high fees and a government website riddled with wrong phone numbers.

His immigration status — undocumented — stands in the way of obtaining medication and therapy a 15-year-old boy needs for his depression, ADHD, and more.

We discuss PFAS, compounds used in cookware, carpeting and upholstery, food wrappers, and firefighting foam, the health risks they pose and the challenges regulating them.

Pennsylvania has seen an abnormally high number of tornadoes this year — with more than two dozen confirmed as of last week.

New Jersey lawmakers may require its doctors to make sure patients know about in-state treatment options.

While seaweed has a lot of things going for it in terms of nutrition, the lack of infrastructure to process it and people's tastes have not been quick to adopt it.

Thousands of gravely ill cancer patients each year seek "compassionate use" access to treatments that are not yet on the market but have shown some promise.

Developer and agencies deny effort to shield from public view plans that would allow for transfer of potentially explosive liquefied natural gas to ocean-going tankers.

Scientists are racing to figure out how it much could contribute to sea level rise and impact cites and coastlines thousands of miles away, including the Philly region.

"The bottom line is that ultimately they seem to be double counting — double charging essentially for the costs of backup generation," he says.

It's often the default setting on fitness trackers, but what's it really based on?

On Monday, 52 tornadoes may have touched down across eight states, says the National Oceanic and Atmospheric Administration.

There is a new Constellation to see – and this one is artificial! The first set of satellites dedicated to eventually providi ...

The judge granted the clinic's request for a temporary restraining order and set a hearing date in early June.