For 57 hours in mid November, a squat lander with spindly legs made history as the first spacecraft to visit the nucleus of a comet – sending a wealth of information on the object to solar-system scientists back on Earth.
The search for 43 college students who vanished in the southern state of Guerrero, Mexico, has dragged on for more than a month. How the crisis is resolved will have a profound impact on confidence in President Peña Nieto.
Since 2011, the civil war in Syria has been the biggest driver of displaced populations. And renewed strife in Iraq and sectarian tensions in Nigeria have meant refugees on a scale that is taking even experts in the field by surprise.
Britain's three major party leaders vowed to devolve more power to Scotland in the run-up to its independence vote. But why should Scotland have both more say over its own laws and on legislation that affects only the English?
Pentagon officials have a mantra when it comes to taking on the Islamic State, also known as ISIS and ISIL: The US military may be able to use American weapons to blunt the advance of IS, but any lasting change will have to come through political reform.
The two most senior living leaders of Cambodia’s Khmer Rouge regime were convicted today of crimes against humanity, the first major convictions in a marathon war-crimes tribunal. More than 1.7 million people died under the regime.