Notebook
- Environment
Air pollution takes a toll on solar energy
Dust and other tiny air pollutants can reduce solar energy output by as much as 25 percent in parts of the world.
- Tech
50 years ago, West Germany embraced nuclear power
In 1967, Germany gave nuclear power a try. Today, the country is trading nukes for renewables.
- Climate
Rising temperatures threaten heat-tolerant aardvarks
Aardvarks may get a roundabout hit from climate change — less food.
- Planetary Science
Moons of Uranus face future collision
By studying variations in the rings of Uranus, researchers have determined the mass and density of the planet’s moon Cressida.
