Climate
Satellite space junk might wreak havoc on the stratosphere
Hundreds of defunct satellites plunge toward Earth every year. Scientists are studying how the chemical stew left in their wake impacts the atmosphere.
Featured Stories
Trending Stories
Spotlight on Health
From the Archives
Featured Media
The world’s largest coral was discovered in the South Pacific
The behemoth coral, discovered in October in the Solomon Islands, is longer than a blue whale and older than the United States.
