Holy shit. "The [Russian] military said the Avangard is capable of flying 27 times faster than the speed of sound. It carries a nuclear weapon of up to 2 megatons." If true, everything we know about missile defense is going to change.https://twitter.com/QuincyInst/status/1212767936445919233 …
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For reference, velocity to maintain low-earth orbit is around Mach 23 (~7.8 km/s). https://en.wikipedia.org/wiki/Low_Earth_orbit#Orbital_characteristics …
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