Watch the Falcon 9 launch from pad 39A

A SpaceX Dragon supply ship arrived at the International Space Station Saturday carrying a new docking mechanism, a spacesuit for future spacewalks, and a 3D bioprinter to test the feasibility of manufacturing human tissue in microgravity.

The Falcon Heavy engine test firing at launch pad 39A seen in 4K high resolution video. The engines fired at 12:30pm EST (1730 GMT) on 24 January 2018 as part of a crucial pre-launch test.

SpaceX’s first Falcon Heavy rocket, made up of two previously-flown Falcon 9 boosters and a beefed up central core stage, made the trip to launch pad 39A at NASA’s Kennedy Space Center in Florida and was raised vertical Thursday for testing ahead of its first liftoff next month.