Science

Water impacts continue at numerous Pennsylvania sites where Sunoco is building the Mariner East 2 pipeline two months after a court-brokered agreement.

Temple University students create inexpensive adaptive designs for children with cerebral palsy.

We used to think of nerds as unattractive, pimply or tragically unfashionable — but somehow over the years — the meaning changed.

EPA administrator Scott Pruitt announced the EPA will formally propose to revoke the Clean Power Plan, Obama’s regulation for carbon dioxide from the electricity sector.

Elon Musk has released a new proposal for becoming a multi-planet species. He is advocating phasing out Falcon 9, Falcon Heavy and Dragon ...

“We’re verging on a big year,” says Mark Garland, director of Cape May’s Monarch Monitoring Project.

National waste service provider discontinues contracts with abortion clinics under pressure.

Getting 161 animals to safety requires choreography and cooperation.

Some ecologists say celebrating 'novel ecosystems' could encourage polluters.

When it comes to recovery, relapse is common. But it doesn't have to be inevitable.

70,000 people, nine days in the Nevada desert, and zero trash.

Today, Dave and Dr. Pitts are stopping by the ice craters of Mercury, the planet closest to the Sun. Temperatures on Mercury typically ho ...

A major component of the plan is the establishment of a Total Maximum Daily Load (TMDL) standard, a pollution budget, for nutrients.

The Oyster Creek nuclear power plant in Ocean County, New Jersey, may be shut down a bit sooner than scheduled.

More than one million cubic yards of sand will be pumped onto beaches in Bethany, South Bethany and Fenwick Island to repair damage caused by recent storms.