The latest news on science
The solar cycle is driven by more than sunspots.
Abandoned mercury mines throughout central California are polluting major waterways.
Depression, anxiety and substance abuse may affect many more people than previously thought.
First results from revamped Hubble identify distant starlit bodies and pose a cosmic puzzle.
If China's economy continues to rely on fossil fuels, its power consumption could be unsustainable.
Males with red-green colorblindness can distinguish the hues after gene therapy, study suggests.