Being part of a growing economy is where you want to be these days. And Space promises to be among one of the fastest growing sectors, with huge spillover potential into other industries. Currently, the space economy has been estimated to be at around 386 billion USD in revenue, and expectations predict it to be at 1 trillion USD by 2040. The outlook is attractive and moving within the space sector one could have the impression of booming space businesses. But are those numbers legitimate?