ADELAIDE, Australia — The many new launch vehicles being developed to attract the small-satellite market look to be twice as expensive as the larger vehicles that are doing a mediocre job of serving that business now, according to a British government-ordered survey.

The survey further concludes that Britain, whose government wants to encourage, but not subsidize, a domestic launch capability, would be best served by importing a small Chinese rocket if it really wants to help create a long-term made-in-UK launch service.

The findings . . .

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