Reducing nitrogen use key to human and planetary health: study
Better management of nitrogen-rich fertilizers through alternating crops, optimizing use and other measures can yield huge environmental and health benefits, but must boost food production at the same time, researchers warned Wednesday.
DNA reveals large migration into Scandinavia during the Viking age
We often think of the Vikings as ultimate explorers, taking their culture with them to far-off lands. But we may not typically think of Viking age Scandinavia as a hub for migration from all over Europe.
Coral bleaching causing 'unnecessary' fish fights
Fish that have lost food due to mass coral bleaching are getting into more unnecessary fights, causing them to expend precious energy and potentially threatening their survival, new research said Wednesday.
Old NASA satellite falling from sky this weekend, low threat
A 38-year-old retired NASA satellite is about to fall from the sky.
Once in 50,000-year comet may be visible to the naked eye
A newly discovered comet could be visible to the naked eye as it shoots past Earth and the Sun in the coming weeks for the first time in 50,000 years, astronomers have said.