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                   US Company Developing Space-Based Tracking

   by Carolyn Presutti

   One of the reasons Malaysia Airlines flight MH370 hasn't been found is
   because the plane couldn't be tracked continuously over the ocean. In
   fact, nearly 3/4 of the globe is untrackable by ground-based radar, the
   typical way to keep track of aircraft since the 1940s. VOA's Carolyn
   Presutti explains how one company plans to deploy space-based tracking
   payloads so that 100% of the earth is trackable and no plane will ever
   be "lost" again.
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   [1]http://www.voanews.com/media/video/us-company-developing-space-based
   -tracking/2919007.html

References

   1. http://www.voanews.com/media/video/us-company-developing-space-based-tracking/2919007.html