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In some ways, indeed, Russia far outstrips America; not only does the US at present rely on Russia for its entire manned space-launch capability, but even a good portion of its own unmanned launch capability — namely, that provided by Orbital Science’s Antares rocket — is powered by Russian-made engines (antique ones, at that).
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Jeff Wise (The Plane That Wasn't There: Why We Haven't Found Malaysia Airlines Flight 370)