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Watch as SpaceX launches its last freight mission to the 2019 Space Station



This afternoon, SpaceX will launch its Dragon Cargo Pod filled with nearly 5,700 pounds of cargo and equipment for the International Space Station crew. It's SpaceX's last supply order to the station for 2019. After the flight, SpaceX will try one of its signature missile landings and aim for a drone ship that floats in the Atlantic.

It is atypical for SpaceX to make an ocean landing after a flight to the ISS. Normally, the company is trying to land the Falcon 9 rocket on a concrete landing site on solid ground. This is because there is usually enough propellant left to make such a landfall. The Earth orbit in which the space station is located is relatively short. This means that SpaceX normally has enough propellant left to turn around and return to the landing. This process eats up more propellant than landing in the ocean.


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