What weapon was Russia testing in Arctic?

BBC: Rocket mystery: What weapon was Russia testing in Arctic?

Five Russian nuclear engineers who died in a rocket engine explosion have been buried in Sarov, a closed town 373km (232 miles) east of Moscow, where nuclear warheads are made.

The Russian state nuclear agency, Rosatom, said the experts had been testing a nuclear-powered engine. But it gave no further technical details.

The test was on an offshore platform in the Arctic, at a naval test range.

Russia has previously tested a nuclear-powered cruise missile, "Burevestnik".

But officials did not specify the system involved in Thursday's disastrous test.

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More News On What Russia Was Testing That Blew Up This Week

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Evidence Grows That Russia's Nuclear-Powered Doomsday Missile Was What Blew Up Last Week (Updated) -- Warzone/The Drive
Russian nuclear body says deadly blast was caused by nuclear power project, not powerful new missile -- The Telegraph
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