"Multiverse Travellers" is a non-fiction exploration of humanity's inherent drive to discover the unknown. It draws a compelling parallel between the imaginative concept of inter-universe travel and the tangible achievements of NASA scientists and astronauts. While clarifying that the exploration of parallel universes remains within the realm of fiction, the book posits that these space pioneers are, in essence, the true "multiverse travellers" of our own cosmos. Through their study of distant planets, stars, and celestial phenomena, they navigate the vast expanse of our universe, driven by the same fundamental curiosity that propels fictional multiverse narratives. This work illuminates how their scientific endeavors reveal the genuine wonders of our reality, mirroring the fictional pursuit of uncharted territories and providing answers to fundamental questions about our place in the universe.