The article pleads for the rebirth of a philosophical cosmology as an essential tool to understand the present. Indeed the globalisation is closely linked with the concept of world, but what such a concept really means is far to be clear. On the contrary we observe a lack of interest for questioning the nature of the world. Worldlessness belongs to the paradoxical feature of the global age. Explaining why this is so, the article sketches how in 20th century several philosophers readdressed the notion of the world, their attempt to construct a new Weltanschauung in the strict sense of the word. Following on from three representative authors, Husserl, Heidegger and Arendt, it is shown how the three classical axes of the cosmological thought ‒ the Earth, the Heaven and the Cosmopolis ‒ can be renewed. A philosophical cosmology today would consequently have these interlaced focal points: 1) an analysis of our being as Earthly creatures, of our embodied experiences of space, time and environmental media; 2) the metaphysical idea of phenomenal totality, together with their secular heritage of images, myths and theories; 3) cosmopolitanism as ethical-political doctrine for a peaceful and balanced world coexistence that avoids being just a contrived post-national conception of state and instead seeks to be a concrete anthropology of globalised man.