Science

The oceans' role in regulating climate and the threats they face from global warming are underestimated and missions are crucial in taking stock of the ecosystems' health.

NASA Astronaut Christina Koch’s maiden voyage in space will extend for almost double the scheduled duration. She is now set to stay ...

After decades of efforts to increase the ranks of African-American doctors, Blacks are still underrepresented in the nation’s medical schools.

As Kermit the Frog once said — it’s not easy being green. Amid challenges like pollution, deforestation and climate change, engaging ...

Water sources will be tested for PFAS contamination, and sampling will begin of urine, dust, and water from residents whose blood was already tested.

Next week, (Wednesday evening at the Union League in Philadelphia) the Geographical Society of Philadelphia will bestow its 128th Explo ...

The newly pictured supermassive black hole is a beast with no name, at least not an official one. And what happens next could be cosmically confusing.

Some Allegheny County residents use a smartphone app to report foul smells in their communities, and a new version of that app is now available to the rest of the country.

"Getting a direct view of a black hole is the ultimate dream for a lot of physicists," as astrophysicist Adam Frank wrote for NPR.

The spotted lanternfly is an invasive species from Asia that recently showed up in New Jersey, Delaware, and Pennsylvania, and poses big problems for farmers.

As more states legalize marijuana, some researchers worry about what that might mean for one of the country's biggest public health successes: curbing cigarette smoking.

Researchers and engineers in American cities have begun the work of transforming their traditional utility grids into self-monitoring, demand-responsive digital networks.

The Event Horizon Telescope team may reveal an image of a black hole event horizon on Wednesday. An array of eight radio telescopes aroun ...

Pennsylvania state Sen. Ryan Aument (R-Lancaster) on Wednesday introduced a long-awaited bill aimed at preventing two of the state’s five nuclear plants from retiring early.

The survey found 68 percent of respondents “definitely” or “probably” want the state to do more to address climate change.