Video: SpaceX launch and landing preview briefing

An ocean-going cargo barge modified to serve as a landing pad for SpaceX’s Falcon 9 booster is set to depart the Port of Jacksonville for a journey into the Atlantic Ocean ahead of Friday’s launch of a space station cargo mission from Cape Canaveral.

SpaceX’s Dragon supply ship wrapped up a 29-day stay at the International Space Station on Tuesday, departing the complex with with nearly 3,700 pounds of research specimens and return cargo before re-entering the atmosphere and splashing down in the Pacific Ocean.

A commercial Dragon spaceship soared into orbit from Cape Canaveral on Saturday in pursuit of the International Space Station, but the automated craft’s Falcon 9 booster crash landed after flying back to Earth in a daring test of futuristic reusable rocket technologies.