More than 500 people were injured when a meteorite shot across the sky and exploded over central Russia today, sending fireballs crashing to Earth, shattering windows and damaging buildings.
Scientists said they may be close to tracking down the mysterious "dark matter" which makes up more than a quarter of the universe but has never been seen.
"Zero Dark Thirty," Hollywood's re-telling of the decade-long manhunt for Osama bin Laden, captured the No. 1 spot on movie box office charts over the weekend with $24 million in US and Canadian ticket sales.