At least 7 people, many or all of them scientists, were killed last week when a missile test resulted in an explosion near Russia’s Arctic coast, per the NYT. Little has been confirmed publicly about the explosion, except that it released radiation.
Between the lines: “The reference to radiation was striking — tests of missile engines don’t involve radiation. Well, with one exception: Last year, Russia announced it had tested a cruise missile powered by a nuclear reactor. ... NATO calls it the SSC-X-9 Skyfall,” Jeffrey Lewis writes for Foreign Policy.