Smoking cannabis can double the risk of stroke in young and middle-aged adults, a study suggests.
Scientists in New Zealand looked at 160 stroke victims aged 18 to 55 who had been admitted to hospital and undergone urine tests. They were 2.3 time more likely to have traces of cannabis in their urine as other hospital patients who had not suffered strokes.
Militant shot dead
Russia said it had shot dead the last surviving militant involved in twin bombings that killed 40 people on the Moscow metro in 2010 during a night-time sweep of a forest hideout in the volatile North Caucasus.
The National Anti-Terrorism Committee released a video showing the mangled body of alleged militant Gusen Magomedovon lying in the underbrush.
Battle for king's bones
Two English cities are doing battle over the bones of King Richard III. This week scientists announced that a skeleton found under a parking lot in the city of Leicester belonged to the king, who died in 1485. Officials say he will now be reburied in Leicester Cathedral.
But York, 100 miles to the north, is laying claim to the monarch, who belonged to the House of York and had strong ties to the city. Leicester is refusing to yield, and the two cities have launched rival petitions to the British government.
Calling other Earths
Earth-like worlds may be closer and more plentiful than anyone imagined.
Astronomers report that the closest Earth-like planet may be just 13 light years away. That planet hasn't been found yet, but it should be there, based on the team's study of red dwarf stars.
McDonald's forks out
An Australian branch of McDonald's will become the first in the world to offer diners the option of plates, cutlery and table service.
The outlet in Warilla, near Sydney, won approval from the fast-food company's HQ in Chicago to test a more formal service for five weeks. The couple who run the outlet got the idea after offering their parents cutlery during their weekly visits. It caught the attention of other patrons who requested similar service.