Russian Missile Caused Blue Spiral

That mysterious and beautiful blue spiral that appeared over skies Wednesday? It was probably the fallout from a failed Russian test of a new submarine-based intercontinental missile, the Bulava. Russia acknowledged Thursday that there was a malfunction during the missile’s flight. It was the 13th test for the Bulava, and the missile failed in at least six of the first 11 tests. The missile launched from a submarine in the White Sea.