Glitch ends Dart mission early

An experimental robotic spacecraft mission for the US space agency has been aborted due to a fuel problem.
Dart (Demonstration of Autonomous Rendezvous Technology) had been designed to manoeuvre within 5m (17ft) of the military satellite. The US space agency (Nasa) said Dart reached no closer than 91m (300ft) of its target during the day-long test.
http://news.bbc.co.uk/2/low/science/nature/4456441.stm