The Pacific Ocean phenomenon has a global impact on weather patterns, which can cause heavy rains in some parts of the world and drought elsewhere.
Only one of the attacks has been claimed by the Islamic State.
San Francisco-based Perceptio focuses on developing AI systems for smartphones.
Easing fears over China and dovish Fed outlook boost risk sentiment among investors.
Merger will include Nestle's ice cream businesses in Egypt, Europe, Philippines, Argentina and Brazil.
Ireland's William Campbell, Japan's Satoshi Omura and China's Tu Youyou jointly awarded the prize.
Engineers Ulrich Hackenberg and Wolfgang Hatz alleged to be behind 'defeat devices'.
Campbell to face tough questions over Taliban aggression and mistaken air strike on MSF hospital.
The red-headed prince is being urged to throw his support behind Wales, like older brother Prince William.
The Oregon college reopened with counsellors and comfort dogs.
Institute of Directors' Simon Walker says carelessness and domestic discontent could lead to Brexit.
'I will try every way I can to get those guns out of the hands of people who shouldn't have them.'
Ben Needham's mum, Kerry says move 'feels like personal attack on me.'
The US Coast Guard says focus has changed from looking for the ship to finding survivors.
Former priest claims Vatican cures homosexual priests by sending them to rehab convent.