A milestone making space mission is, quite factually, ready to set sail. The privately sponsored Cosmos-1 solar sail is to fly into Earth orbit courtesy of a boost from a Russian Volna rocket, deployed from a Russian nuclear submarine positioned in the Barents Sea. The submarine-launched rocket, carrying the solar sail is targeted for liftoff on June 21 at 3:46 p.m. EDT. The Volna rocket being tapped to toss Cosmos 1 into a roughly 500 mile (800 kilometer) circular, near polar orbit is a converted ballistic missile of the type once armed and aimed at the United States. Cosmos 1’s...