Science

A Caribbean island once full of lush trees and teeming with wildlife is nearly completely deforested and undergoing a mass extinction event.

The Surfrider Foundation's 2018  "State of the Beach Report Card" has given the state a failing grade for its "inadequate protection of coastal communities and resources."

The six-wheeled rover landed in the southern section of the Von Kármán crater, near the moon's south pole, Chinese media reported.

NASA's New Horizons spacecraft has survived the most distant exploration of another world, a tiny, icy object 4 billion miles away that looks to be shaped like a peanut.

About a billion miles beyond Pluto, a spacecraft is closing in on an icy minor planet — a mysterious little place that's only about 20 miles across.

Natural gas production in Pennsylvania is expected to reach a new high by year’s end: 6 trillion cubic feet.

While the bulk of solar energy in Pennsylvania exists in the eastern half of the state, co-ops are popping up across western part of the commonwealth to help people go solar.

Here’s a look at how Pennsylvania has been working to reduce emissions in 2018 and a preview of what may be in store for next year.

The list is long: High-tech tools for immigration crackdowns. Fears of smartphone addiction. YouTube algorithms that steer youths into extremism. Gene-edited babies.

Shoot it down. Jam it. Use a missile or maybe a net. There's no shortage of ideas about how to stop a drone, but as the past few days show, the reality is far more difficult.

Just in time for the winter solstice, scientists may have figured out how short days can lead to dark moods.

Brothers Bill and Brandon Green invite the public on Philadelphia's South Street to see the moon up-close.

The company will focus on recruiting students, graduates, and others in the area to work on artificial intelligence, which powers features such as 'smart reply' in Gmail.