Add Yahoo as a preferred source to see more of our stories on Google. The Moon has no real atmosphere, but Earth has, in a sense, been generously trying to share its own for billions of years. A new ...

The world is warming. This fact is most often discussed for Earth's surface, where we live. But the climate is also changing ...

A severe winter storm that brought freezing rain, sleet and snow to a large part of the U.S. was intensified by the polar ...

thermal characteristics (temperature changes), chemical composition, movement, and density. Each of the layers are bounded by "pauses" where the greatest changes in thermal characteristics, chemical ...

Earth’s atmosphere now has more carbon dioxide in it than it has in millions — and possibly tens of millions — of years, according to data released Thursday by the National Oceanic and Atmospheric ...

A new study reveals that tiny fragments of Earth's atmosphere are transported to and absorbed by the moon via gusts of solar wind and our planet's magnetic field, upending a 20-year-old theory based ...

Sixty-six million years ago, Earth was a tropical greenhouse. Today, it's an ice-capped world. And an international team of ...