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With jurisdiction from the bottom of the ocean to deep space, U.S. Strategic Command has its hands full in a very complex world. CNET Road Trip 2013 visited to better understand the mission.
An old NASA satellite is expected to fall back into the atmosphere late this month, resulting in a shower of debris, more than 1,000 pounds of which will hit the ground. But experts say public risk is minimal.
A commercial communications satellite hits a defunct Russian satellite Tuesday above Siberia, creating a cloud of wreckage. The International Space Station is deemed safe.