Russia has conducted a final test of a nuclear-capable glider that flies at 20 times the speed of sound. The missile was launched from the Dombarovskiy missile base in the southern Ural Mountains and hit its target on a test site in Kamchatka, about 6,000km away. Avangard is designed using new composite materials to withstand temperatures of up to 2,000 degrees Celsius that come from a flight through the atmosphere at hypersonic speeds.