Analysis of the sediment in Belize’s Great Blue Hole shows a concerning trend. Blue holes, the name for collapsed limestone ...

You know those little glow-in-the-dark stars that dot the ceilings of children’s rooms? Yeah, I didn’t have stars. Instead, I ...

For centuries, sailors have told tales of milky seas – huge swaths of ocean glowing on dark nights, seen in blue in this false–color satellite image. Steven D. Miller/NOAA ...