Rosetta close to comet rendezvous

A European spacecraft is closing in on an icy comet more than 250 million miles (402 million km) away at the end of an epic 10-year journey across the Solar System.

Mission controllers in Germany are preparing for the crucial six minute 26 second thruster burn that will set the Rosetta probe in orbit around the two-mile (3.2km) wide object at 10am, Irish time.