Twitter CEO Dick Costolo quits

Many on Wall Street have been calling for Costolo to step down over the past year, as Twitter (TWTR, Tech30) struggled to add new members and generate more revenue from its ad products."I am tremendously proud of the Twitter team and all that the team has accomplished together during my six years,

Woman knew she'd beaten MERS when doctors stopped using biohazard suits

She's 77 and has chronic asthma. But Kim Bok-soon has also survived MERS, the mysterious virus that's spreading in South Korea and putting thousands in quarantine.

Mathematician: Missing MH370 plunged vertically into ocean

It has been 15 months since Malaysia Airlines Flight 370 from Kuala Lumpur to Beijing did an unexplained about-face, flew in the wrong direction and disappeared without a trace with 239 souls on board.

China greenhouse gases: Progress is made, report says

China's greenhouse gas emissions could start to decline within 10 years, according to a report from the London School of Economics

Turkey ruling AKP loses majority in surprise result

Turkey's governing AK party has lost its parliamentary majority for the first time in 13 years, near-complete election results show.

Turkey votes in crucial election

Turks are voting in a general election on Sunday which will determine whether the ruling party can change the constitution.

G7 leaders prepare for summit in Germany

Leaders from the world's richest countries are due to attend the annual G7 summit in the Bavarian Alps in Germany

The clever politics of Sepp Blatter's 'resignation' from FIFA

And so Sepp Blatter has defied all expectations and announced his intention to step aside from the presidency of FIFA after 17 years at the helm. Despite numerous scandals afflicting the organization he ran,

Egypt's High Court rules Mubarak to stand trial again for deaths of protesters

Egypt's High Court has granted a request from prosecutors to have the country's former President, Hosni Mubarak, stand trial again for the deaths of hundreds of protesters during a 2011 uprising, state media reported Thursday.

U.S. official: 10,000-plus ISIS fighters killed in 9-month campaign

The U.S.-led coalition against ISIS has recorded more than 10,000 ISIS deaths since the campaign against the extremist group began nine months ago, U.S. Deputy Secretary of State Tony Blinken told France Inter radio.