The number of deaths from exposure to wildfire smoke in the U.S. could rise by more than 70% in the next 25 years. The human ...

An ocean flowing beneath the surface of Saturn's moon Enceladus is spewing ice that holds the building blocks of life.

Comet Lemmon, discovered earlier this year, is gearing up for a close approach to Earth later this month. It may become ...

Beijing has a track record of only promising what it plans to deliver. But too often the world's attention is elsewhere.

The vital commercial artery depends on a supply of fresh water to move ships between the two oceans. Drought conditions that ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

A Chinese robotics company has unveiled what it describes as a realistic robot face, with plans to make humanoid robots more approachable and relatable.

New research finds the disappearance of glaciers in the Sierra Nevada will be unprecedented in the human history of North ...

The Bering Land Bridge likely didn't emerge until around 35,000 years ago, much later than was previously thought. This ...

In a proof-of-concept experiment, scientists demonstrated that you can create and fertilize human eggs in the lab using sperm ...

Years of hits in sports like football and soccer, even without concussions, can trigger neuron loss and inflammation in the ...

From smart swimming goggles to waterproof smartwatches that sit on your wrist, these are our favorites tested and rated.