Russia has announced that it will ban the export of RD-180 engines to the US. The RD- 180, built by Russian-based NPO Energomash is used to power the Atlas V rocket, one of the US military’s two main satellite launchers. A committee of space experts led by retired Air Force Major General Mitch Mitchell has said that losing the RD-180 could delay as many as 31 space missions at a cost of up to $5 billion. According to reports, the ban has not yet come into force.

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