Galileo: Star project or black hole?

Nasa is also due to give its formal backing to a British-led £100m unmanned mission to the Moon.
These are clearly exciting times for Britain's space industry - which has suffered in the past from a lack of government investment and political neglect.
The UK missed out on the boom in satellite launches when it cancelled its own rocket programme in the early 1970 but Britain has since become a world leader in the manufacture of satellites.
Science Minister Ian Pearson says space is currently worth £7bn to the UK economy and the sector is growing faster even than China's space industry.
But while ministers turn their gaze to the stars - and dream of Britons venturing to other planets - there is one long-running space saga which still has the power to bring them back down to earth with a bump.
Galileo - Europe's planned rival to America's Global Positioning System (GPS) - has been beset by a series of cost-overruns and technical delays since it was first proposed at the end of the last century.
The first of about 30 Galileo satellites should have been in operation this year, 26,000km above the planet - but will not now fly until 2013. news7