Between October 2021 and January 2022 an ambitious combined art and science exhibition presented a unique object-rich cosmological story at the University Library of Leuven, Belgium, as part of the Kunst Leuven KNAL! City Festival 2021 (English: BANG! Big Bang City Festival). To the Edge of Time was a transdisciplinary introduction for general audiences to one of the most famous and complex developments in science, the Big Bang theory. The exhibition presented artworks and science objects as equal partners that through curatorial placement and interpretation could fluidly convey key theoretical moments, materials, philosophical perspectives and ideas. The scientific story focused on how the groundbreaking work of the Belgian priest-astronomer Georges Lemaître bridged the insights of two of the twentieth century's other leading European scientists, German physicist Albert Einstein and the British cosmologist Stephen Hawking. Objects from their lives and archives revealed their specific ideas and processes of thinking and discovery. Artworks from leading international artists brought new material, critical and conceptual dimensions and multisensory encounters. The exhibition was the result of a curatorial collaboration between the author, British contemporary art and transdisciplinary curator Hannah Redler-Hawes, and Belgian cosmologist and former collaborator of Stephen Hawking, Professor Thomas Hertog, of KU Leuven. As guest curators, they worked with Annelies Vogels, Exhibition Coordinator of the university and Wouter Daenen of KU Leuven Libraries, and others to form a closely collaborating curatorial team. To the Edge of Time was not only the first exhibition worldwide to explore Lemaître's work through a transdisciplinary narrative, but also to place Stephen Hawking's work in a broader historical context. In the trans- and interdisciplinary exhibition field, where new commissions and collaborations between living artists and scientists have been increasing, it was somewhat unusual for a cosmology exhibition in its reliance on material culture, concentration on historical art and science objects and its combining of these with presentations of recent contemporary art and advanced theoretical physics concepts. These combinations helped to convey parallel movements of thought where neither the art nor the science were presented as derivative to each other, a key curatorial ambition. This practice-based paper, offering Redler-Hawes's personal reflections, discusses how the narrative evolved to define a shared language between the contributors. It considers, through a narrated walk-through of key objectartwork 'constellations', how the presentation generated new insights into different methods of enquiry, knowledge acquisition and making sense of our place in the cosmos, by bringing major themes in twentieth century science into dialogue with international artists working independently and in collaboration with science during the twentieth and early twenty-first centuries. [ABSTRACT FROM AUTHOR]