Russia has tested its nuclear-powered Burevestnik cruise missile, known as Skyfall by NATO.

Military officials claim it flew 14,000 kilometers over 15 hours, showcasing its ability to evade air and missile defenses.

The weapon, designed for unlimited range, has faced reliability concerns after a 2019 accident.
Experts warn it's not invincible but signals an escalating arms race amid ongoing tensions over the war in Ukraine.