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SpaceX launches 21 Starlink satellites on Falcon 9 rocket, lands booster on ship at sea
A SpaceX Falcon 9 rocket lifted off from NASA's Kennedy Space Center on Saturday (April 12), carrying 21 Starlink satellites ...
Watch live: SpaceX Falcon 9 Starlink satellite launch
SpaceX launched 21 Starlink satellites, including 13 equipped with direct-to-cell capabilities, from Cape Canaveral on ...
Jonathan McDowell on Retiring From Harvard and Leaving the U.S.
Jonathan McDowell is retiring from studying the universe. But he’s ramping up efforts to chronicle humanity’s exploration of ...