The latest news on science
Chemistry may help scientists improve control of invasive fire ants.
Decline in sea ice could mean the loss of two-thirds of global polar bear population by mid-century.
The average plasma TV uses more than three times as much energy as an old cathode-ray tube set.
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.