Is Russia testing a nuclear missile capable of hitting anywhere in the world?

"Increased activity has been observed at a Russian base in the remote regions of Siberia,

according to American surveillance planes and satellites. ....the activity resembles missile tests that Russia has conducted in the past. The missile in question is believed to be the Burevestnik or SSC-X-9 Skyfall missile, which, according to Putin, is nuclear-powered and can be equipped with a nuclear warhead.....this missile could potentially reach most parts of the Earth." MS