SpaceX launched its Falcon Heavy rocket in the early hours of Tuesday morning, delivering 24 satellites into orbit and making many of its clients very happy in the process. The company nailed the landing of both side boosters, but the center core booster narrowly missed its landing and splashed down in the ocean instead.

In the hours following the launch, SpaceX boss Elon Musk weighed in on the unfortunate fate of the core booster, offering a bit of an explanation as to why it missed its mark.