satellite saving robots

Orbiting machines used to repair other spacecraft can just as easily be used to destroy them and will require new international rules to keep the peace. The most sophisticated satellites can cost more than $1 billion to build and launch. Yet all that money and technology hasn't been able to buy something every car owner takes for granted: on-demand repairs and tune-ups. Now, thanks to years of development by governments and private companies, outer space satellite servicing is becoming a reality — and a business.Just…