Using Facebook erodes overall well-being and a sense of satisfaction with life among young adults, researchers at the University of Michigan say.

Nasa is retiring the Kepler space telescope from planet-hunting because its pointing system is no longer fully functional.

Ecuador abandons a scheme that would have paid the country not to drill for oil in pristine parts of Yasuni National Park in the Amazon rainforest.

As anti-fracking protestors gather in West Sussex, scientists in the US have again raised questions about the impact of the technique on drinking water.

Macaques that wield stone tools are under threat from the growth of illegal rubber farms and palm oil plantations in Thailand.