Harvard University imposes academic sanctions on dozens of students for cheating in a final exam, a dean says in an email to students.

Harvard University imposes academic sanctions on dozens of students for cheating in a final exam, a dean says in an email to students.

For many people around the world, American Football is difficult to understand. Franco Cuen, a young player explains the basics with lemons and tangerines

For many people around the world, American Football is difficult to understand. Franco Cuen, a young player explains the basics with lemons and tangerines

The Science Museum in London is holding a number of events which explore the science of consciousness through the example of a zombie outbreak.

School pupils in Timbuktu have returned to their studies, 10 months after the occupation by Islamist militants began.

Former Manchester City striker Mario Balotelli complains about life in England as AC Milan parade their new £19m signing.

Tests are being carried out on a sticky white wax that has been found on more than 100 seabirds washed up along England's south-west coastline.

The White House leads tributes to former New York City Mayor Ed Koch, who has died at the age of 88.

The White House leads tributes to former New York City Mayor Ed Koch, who has died at the age of 88.

Hillary Clinton says the world is a safer place, in her farewell address to state department staff on her last day as America's top diplomat.

Hillary Clinton says the world is a safer place, in her farewell address to state department staff on her last day as America's top diplomat.

President Barack Obama's administration unveils an opt-out for religious groups that object to covering birth control in their staff health plans.

President Barack Obama's administration unveils an opt-out for religious groups that object to covering birth control in their staff health plans.

Tension rise in peace talks as Colombia's Farc rebels kill three policemen in an ambush near the Venezuelan border, according to the authorities.

Egyptian protesters clash with police outside Cairo's presidential palace, after the deadliest week of violence since Mohammed Morsi came to power.

Former New York City Mayor Ed Koch has died aged 88.

The main US share index closes on Friday at a five-year high, buoyed by data showing the economy added more jobs than previously estimated at the end of 2012.

The main US share index closes on Friday at a five-year high, buoyed by data showing the economy added more jobs than previously estimated at the end of 2012.

Space monkey, Hagel and Koch in 140 characters or fewer