SpaceX Launches 10 More Iridium Communications Satellites

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LOS ANGELES—A SpaceX rocket delivered 10 satellites to low-Earth orbit on Friday, completing a two-year campaign by Iridium Communications Inc. to replace its original fleet with a new generation of mobile communication technology and added global aircraft tracking capability.

The Falcon 9 rocket blasted off from Vandenberg Air Force Base at 7:31 a.m. and arced over the Pacific west of Los Angeles. The previously used first stage was recovered again with a bullseye landing on a “droneship” in the ocean while the upper stage continued on to orbit.