OH NO: SpaceX Falcon Heavy center core stuck the landing before sliding into the abyss. “The Falcon Heavy center core successful landed on the drone barge out in the ocean, but on the trip back to Florida the barge ran into heavy seas, and the rocket fell over and slid into the ocean abyss. SpaceX said that the rough seas with swells from eight to ten feet made the booster begin to shift on the platform and it was unable to remain upright.”

The story notes that the recovery team was unable to secure the rocket to the platform, but it doesn’t say why.