Imagine for a moment the atmosphere is a kitchen sink. Wildfires, industry emissions, plants and microbes dump their grimy dishes into it in the form of noxious and planet-heating gases. The only ...

If you're feeling lonely, take solace in remembering that there are countless tiny living things floating tens of thousands of feet above your head. And as scientists have come to learn more and more ...

Look up on a clear night and you'll see the streaks of our new space age. What you don't see is the growing fallout for the atmosphere that keeps us alive. A wave of satellite launches and reentries ...